29-11-2016 SINGAPORE - PARADOXICAL KEELED MILLIPEDE (Anoplodesmus saussurii)

Anoplodesmus saussurii is a species of millipedes in the family Paradoxosomatidae. It was once thought endemic to Sri Lanka, but it was later found in Fiji and Mauritius.

It is about 21–33 mm in length. Adults are shiny dark brown to black in color. They are much largely aggregated species that can be found undercover of decaying litter layers in the agricultural and horticultural land areas and forests on humid soils. Mainly herbivores, they are known to eat any decaying and rotting leaves and vegetable parts, and even wood, decaying fish, and cow dung. After 20 to 25 days of copulation, female laid 200 to 400 eggs in earthen nests. One female may lay 2 to 4 times of egg masses in her lifetime. After seven moultings, stadia come out to surface after the onset of the rainy season.

10-2-2018 RIO SERPIS GANDIA, VALENCIA - WESTERN CATTLE EGRET (Bubulcus ibis ssp. ibis)

The western cattle egret (Bubulcus ibis) is a species of heron (family Ardeidae) found in the tropics, subtropics and warm temperate zones. Most taxonomic authorities lump this species and the eastern cattle egret together (called the cattle egret), but some (including the International Ornithologists' Union) separate them. Despite the similarities in plumage to the egrets of the genus Egretta, it is more closely related to the herons of Ardea. Originally native to parts of Asia, Africa and Europe, it has undergone a rapid expansion in its distribution and successfully colonised much of the rest of the world in the last century.

It is a white bird adorned with buff plumes in the breeding season. It nests in colonies, usually near bodies of water and often with other wading birds. The nest is a platform of sticks in trees or shrubs. Western cattle egrets exploit drier and open habitats more than other heron species. Their feeding habitats include seasonally inundated grasslands, pastures, farmlands, wetlands and rice paddies. They often accompany cattle or other large mammals, catching insect and small vertebrate prey disturbed by these animals. Some populations of the cattle egret are migratory and others show post-breeding dispersal.

9-2-2018 MONTE CORONA, VALENCIA - RED ADMIRAL BUTTERFLY (Vanessa atalanta)

Vanessa atalanta, the red admiral or, previously, the red admirable, is a well-characterized, medium-sized butterfly with black wings, red bands, and white spots. It has a wingspan of about 2 inches (5 cm). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. The red admiral is widely distributed across temperate regions of North Africa, the Americas, Europe, Asia, and the Caribbean. It resides in warmer areas, but migrates north in spring and sometimes again in autumn. Typically found in moist woodlands, the red admiral caterpillar's primary host plant is the stinging nettle (Urtica dioica); it can also be found on the false nettle (Boehmeria cylindrica). The adult butterfly drinks from flowering plants like Buddleia and overripe fruit. Red admirals are territorial; females will only mate with males that hold territory. Males with superior flight abilities are more likely to successfully court females. It is known as an unusually calm butterfly, often allowing observation at a very close distance before flying away, also landing on and using humans as perches.

9-2-2018 MONTE CORONA, VALENCIA - WESTERN HONEY BEE ( Apis mellifera)

28-11-2016 JURONG, SINGAPORE - ECLECTUS PARROT (MALE) (Eclectus roratus)

The Papuan eclectus, red-sided eclectus, or New Guinea eclectus (Eclectus polychloros) is a parrot species which is native to New Guinea. Larger than the Moluccan eclectus, the green plumage of the male only has a slight yellow tinge and the tail is tipped with a half-inch yellow band. The central tail feathers are green and lateral ones blue and green. It is widely distributed from Kai Islands and western islands of the West Papua province in the west, across the island of New Guinea to the Trobriands, D'Entrecasteaux Islands, Louisiade Archipelago, Bismarck Archipelago, and Solomon Islands to the east, and south to the northern Cape York Peninsula of Australia. It has also been introduced to the Goram Islands, Indonesia.

The Papuan eclectus nests in tree cavities and breeds from April to September. Two eggs are typically laid.

The Papuan eclectus is a popular pet parrot and there is a large avicultural population. Many Papuan eclectus in captivity in Australia are apparently hybrids between subspecies E. p. polychloros and E. p. solomonensis, as Taronga Zoo Sydney had a flock of these two subspecies in a large aviary many years ago. Specimens of the Australian subspecies E. p. macgillivrayi have only recently entered the aviculture market in Australia and are more expensive.

The World Parrot Trust recommends that the Papuan eclectus be kept in an enclosure with a minimum length of 3 metres (9.8 ft). It may live for up to 50 years in captivity.

28-11-2016 JURONG, SINGAPORE - LESSER BIRD OF PARADISE (MALE) (Paradisaea minor)

The lesser bird-of-paradise (Paradisaea minor ) is a bird-of-paradise in the genus Paradisaea.

The lesser bird-of-paradise is medium-sized, up to 32 cm-long, maroon-brown with a yellow crown and brownish-yellow upper back. The male has a dark emerald-green throat, a pair of long tail-wires and is adorned with ornamental flank plumes which are deep yellow at their base and fade outwards into white. The female is a maroon bird with a dark-brown head and whitish underparts. Further study is required, but it seems likely that birds-of-paradise also possess toxins in their skins, derived from their insect prey.

It resembles the larger greater bird-of-paradise, but the male of that species has a dark chest, whereas the female is entirely brown (no whitish underparts).

28-11-2016 JURONG, SINGAPORE - GREEN PEAFOWL (Pavo muticus)

The Green peafowl (Pavo muticus) is a peafowl species native to the tropical forests of Southeast Asia. Due to their natural beauty, these birds are still sometimes targeted by the pet trade, feather collectors, and even by hunters for meat. They are a much-desired bird for private and home aviculturists, despite their rather high-maintenance care requirements.

The sexes of Green peafowl are quite similar in appearance, especially in the wild. Both males and females have long upper-tail coverts (which cover the tail itself, underneath). In the male, this extends up to 2 m (6.6 ft) and is decorated with eyespots; in the female, the coverts are green and much shorter, just covering the tail. Outside of the breeding season, however, the male's train is moulted; distinguishing the sexes during this period can be difficult unless they are observed quite up close. The neck and breast feathers (of both sexes) are highly iridescent green and resemble dragon scales. In the male, the scapular, median, and greater wing coverts are blue; the lesser coverts are green and form a triangle of scaly shoulder feathers (when the wing is closed). The secondaries are black and, in some subspecies, the tertials are brown and/or barred with a faint pattern. The female has blue lesser coverts and lacks the triangle at the wing-shoulder. Females also have neck scales fringed with copper, as well as more barring on the back, the primaries and alula. Both sexes have shafted crests, are long-legged, heavy-winged, and long-tailed in silhouette. The crest of the female has slightly wider plumes, while those of the male are thinner but taller. The facial skin is double-striped with a whitish-blue; beside the ear is a yellow-orange crescent. The dark triangle below the eye (towards the eyebrow) is bluish-green in the male, and brown in the female. Seen from a distance, they are generally dark-coloured birds with pale vermillion- or buff-coloured primaries, which are quite visible in their peculiar flight; this action has been described as a true "flapping" flight, lacking the gliding that one associates with many birds.

28-11-2016 JURONG, SINGAPORE - MALAYAN PEACOCK PHEASANT (Polyplectron malacense)

The Malayan peacock-pheasant (Polyplectron malacense) also known as crested peacock-pheasant or Malaysian peacock-pheasant, is a medium-sized pheasant of the galliform family Phasianidae. The closely related Bornean peacock-pheasant (P. schleiermacheri) was formerly included here as a subspecies, but as understood today, P. malacense is monotypic.

It is one of the shortest-tailed peacock-pheasants. Adult males are about 50 cm long, about half of which is made up by the tail. Their tarsus measures approximately 6.5 cm, and their wings are 20–21 cm long; they weigh from over 600 to nearly 700 g.

The female is slightly smaller than the male, with a noticeably shorter tail; measuring about 40 cm overall, its tail is slightly less than 20 cm long, while its tarsus measures c.6 cm and its wing length is 18 cm. Adult females weigh about 450-550.

Their plumage is generally pale brown with small black spots and bands all over, creating the "salt-and-pepper" effect found in most peacock-pheasants. It has iridescent blue-green eyespots with a buff border on its upperwings, back, and on the 22 rectrices, a white throat running down to the center of the breast, and a loose, pointed and upturned dark blue-green crest on its forehead. A bare facial skin surrounds the eyes with their bluish-white iris; usually pink, it becomes bright orange-red during courtship. The bill and legs are blackish.

Female plumage is duller than in males, with a vestigial crest and eyespots only on remiges and rectrices. On the wing coverts and back, they have dark dots instead, which are pointed towards the feather tip.

Young birds resemble females but have even less-developed eyespots and usually lack them entirely except on the rectrices. The downy hatchlings are pale chestnut-brown above and buff below.

28-11-2016 JURONG, SINGAPORE - MOUNTAIN PEACOCK PHEASANT (Polyplectron inopinatum)

The mountain peacock-pheasant (Polyplectron inopinatum ) also known as Rothschild's peacock-pheasant or mirror pheasant is a medium-sized, up to 65 cm long, blackish brown pheasant with small ocelli and long graduated tail feathers. Both sexes are similar. The male has metallic blue ocelli on upperparts, green ocelli on tail of twenty feathers and two spurs on legs. Female has black ocelli on upperparts, unspurred legs and tail of eighteen feathers. The female is smaller and duller than male.

A shy and elusive bird, the mountain peacock-pheasant is distributed and endemic to montane forests of the central Malay Peninsula. The diet consists mainly of berries, beetles and ants.

Mitochondrial DNA cytochrome b and D-loop as well as the nuclear ovomucoid intron G data confirms that this species belongs to a clade together with the bronze-tailed peacock-pheasant, Germain's peacock-pheasant and grey peacock-pheasant (Kimball et al. 2001).

The molecular data suggests - though not with high confidence - that this species diverged from mainland stock earlier than the bronze-tailed peacock-pheasant. This is quite spurious, since its biogeography and derived plumage, and the fact that it is a peninsular mountain endemic indicate it is derived from a fairly small founder population; this would confound molecular analyses. What seems clear is that the present species evolved from mainland Southeast Asian stock, probably during the Late Pliocene to Early Pleistocene (3.6-1 myr). The unique pattern of wings and tail thus is, contrary to long-held opinion, an autapomorphy, and the southern species of this clade - formerly separated in the genus Chalcurus - are probably not each other's closest relatives.

Due to ongoing habitat loss, small population size and limited range, the mountain peacock-pheasant is evaluated as Vulnerable on the IUCN Red List of Threatened Species. It is listed on Appendix III of CITES in Malaysia.

28-11-2016 JURONG, SINGAPORE - AFRICAN PIED HORNBILL (Lophoceros fasciatus)

The African pied hornbill (Lophoceros fasciatus ) is a bird of the hornbill family, a family of tropical near-passerine birds found in the Old World.

The African pied hornbill is a common resident breeder in much of equatorial Africa, from The Gambia to western Uganda and northern Angola. This is a bird of mainly forest habitats. The female lays up to four white eggs in a tree hole, which is blocked off during incubation with a cement made of mud, droppings and fruit pulp. There is only one narrow aperture, just big enough for the male to transfer food to the mother and the chicks.

The African pied hornbill is omnivorous and eats fruit and insects. It feeds mainly in trees and is attracted to oil palms.

This conspicuous and gregarious bird advertises its presence with its whistling pii-pii-pii-pii- call.

When the chicks and the female are too big to fit in the nest, the mother breaks out and rebuilds the wall. Then both parents feed the chicks.

28-11-2016 JURONG, SINGAPORE - BLACK BILLED MAGPIE (Pica hudsonia)

This species prefers generally open habitats with clumps of trees. It can therefore be found in farmlands and suburban areas, where it comes into regular contact with people. Where persecuted it becomes very wary, but otherwise it is fairly tolerant of human presence. Historically associated with bison herds, it now lands on the backs of cattle to glean ticks and insects from them. Large predators such as wolves are commonly followed by black-billed magpies, who scavenge from their kills. The species also walks or hops on the ground, where it obtains food items such as beetles, grasshoppers, worms, and small rodents.

The black-billed magpie is one of the few North American birds that build a domed nest, which is made up of twigs and sits near the top of trees, usually housing 6–7 eggs. Incubation, by the female only, starts when the clutch is complete, and lasts 16–21 days. The nestling period is 3–4 weeks.

1-12-2015 ANGKOR WAT, CAMBODIA - ALEXANDRINE PARAKEET (Psittacula eupatria)

The Alexandrine parakeet (Psittacula eupatria), also known as the Alexandrine parrot, is a medium-sized parrot in the genus Psittacula of the family Psittaculidae, native to South Asia and Southeast Asia. It is named after Alexander the Great, who transported numerous birds from Punjab to various European and Mediterranean countries and regions, where they were prized by the royalty, nobility and warlords.

The Alexandrine parakeet has established feral populations in Turkey, Iraq, Kuwait, Saudi Arabia, Bahrain, Qatar, the United Arab Emirates and Iran, where it lives alongside feral populations of its close relative, the rose-ringed parakeet (Psittacula krameri).

8-2-2018 CAMI LES FONTS OLIVA, VALENCIA - COMMON CHIFFCHAFF (Phylloscopus collybita)

8-2-2018 OLIVA MARJAL, VALENCIA - MALLARD (FEMALE) (Anas platyrhynchos)

8-2-2018 OLIVA MARJAL, VALENCIA - MALLARD (MALE) (Anas platyrhynchos)

25-3-2017 TUIS CARTAGO, COSTA RICA - BLACK THROATED TROGON (MALE) (Trogon rufus)

The northern black-throated trogon (Trogon tenellus), also known as the graceful black-throated trogon, is a bird in the family Trogonidae, the trogons and quetzals. It is found from southeastern Honduras to northwestern Colombia.

What is now the northern black-throated trogon was long treated as one of six subspecies of the then "black-throated trogon" (Trogon rufus sensu lato). Starting in 2022, the South American Classification Committee of the American Ornithological Society (AOS), the International Ornithological Congress, and the Clements taxonomy split the black-throated trogon into four species, one of them being the northern black-throated trogon. In this split Trogon rufus was renamed the Amazonian black-throated trogon. However, as of 2024 the North American Classification Committee of the AOS and BirdLife International's Handbook of the Birds of the World (HBW) have not recognized the split, retaining the six-subspecies black-throated trogon.

Like most trogons, the northern black-throated has distinctive male and female plumages with soft colorful feathers. This relatively small species is about 23 to 26 cm (9.1 to 10 in) long and weighs 50 to 59 g (1.8 to 2.1 oz). Adult males have a black face and throat with a pale blue ring of bare skin around their eye. They are metallic green on their crown, back, lesser wing coverts, and rump. Their uppertail coverts are bluish. Their flight feathers, primary coverts, and secondary coverts are various patterns of black and white. The upper side of their central pair of tail feathers is bluish with wide black tips. The next two pairs are similar with the addition of black inner webs. The outermost three pairs have black bases, white tips, and black and white bars between. The underside of their tail has black and white bars and a wide white tip. Their upper breast is metallic green and their lower breast and belly are yellow, sometimes with a thin white band below the upper breast. Adult females have mostly brown upperparts; their crown is darker and their rump and uppertail coverts lighter. Their face is brown with a whitish to pale blue ring of bare skin around their eye. Their primaries are mostly fuscous-black with a narrow white edge on their outer webs. Their secondaries and their greater and median coverts are copper with a dusky tinge. Their lesser wing coverts are black with brown tips. The upper side of their central pair of tail feathers is rufous-brown to chestnut with narrow black tips and a faint cinnamon-buff band between the colors. The next two pairs are black with rufous-brown edges. The outermost three pairs have black bases, white tips, and black and white bars between. The underside of their tail has black and white bars and a wide white tip. Their throat and upper breast are a paler brown than their back with a white band below the upper breast. Their lower breast and belly are yellow. Males have a mostly bright yellow to yellow-green bill; females' bills are highly variable from black with some yellow to dusky yellow with some black. All ages of both sexes have a dark brown iris. Adults' legs and feet are bluish gray; those of nestlings and juveniles can be pinkish.

25-3-2017 TUIS CARTAGO, COSTA RICA - BLACK THROATED TROGON (FEMALE) (Trogon rufus)

It is a resident of the lower levels of damp tropical forests, and prefers the deep shade of the understory. Their broad bills and weak legs reflect their diet and arboreal habits. Although their flight is fast, they are reluctant to fly any distance. They typically perch upright and motionless.

Black-throated trogons feed mainly on arthropods as well as some fruit, often taken in flight; they are one of the most insectivorous trogon species of their range. They opportunistically catch arthropods that have been startled by other predators, such as coatis (Nasua spp.).

The black-throated trogon nests 1–6 m (3.3–19.7 ft) high in an unlined shallow cavity, with a typical clutch of two white eggs.

8-2-2018 CAMI LES FONTS OLIVA, VALENCIA - COMMON CHIFFCHAFF (Phylloscopus collybita)

The Common Chiffchaff, Phylloscopus collybita, is a diminutive and sprightly leaf warbler known for its distinctive, onomatopoeic song. This small, migratory passerine is characterized by its greenish-brown upperparts and off-white underparts, with a weight ranging from 6 to 8 grams and a length of 10-12 centimeters.

In the field, look for the Common Chiffchaff's short whitish supercilium, fine dark bill, and dark legs. Its primary projection is short, and the plumage may appear duller and browner as it wears. Juveniles are browner above with yellow-white underparts, but they soon acquire brighter plumage after their first moult.

The Common Chiffchaff breeds in open woodlands with a mix of taller trees and ground cover across northern and temperate Europe, Asia, and parts of north Africa. It prefers woodland with trees at least 5 meters high and an undergrowth of grasses and nettles.

This species has a vast breeding range, extending from Europe to eastern Siberia and northward to about 70 N. It winters in southern and western Europe, southern Asia, and north Africa. The Common Chiffchaff is one of the earliest spring migrants to return to its breeding grounds and one of the last to depart in autumn.

The male Common Chiffchaff is fiercely territorial during the breeding season, defending its core territory against rivals. It exhibits a fearless nature, even attacking predators that threaten its nest. Outside the breeding season, these birds may form small flocks with other warblers.

The song is a cheerful "chiff-chaff," which heralds the arrival of spring. Calls include a "hweet" sound, less disyllabic than the calls of closely related warblers. The song is a key distinguishing feature from similar species, such as the Iberian Chiffchaff.

The female constructs a domed nest on or near the ground, lined with feathers. Clutches typically consist of 2-7 cream-colored eggs, which hatch after 13-14 days. The female assumes most of the responsibility for brooding and feeding the chicks, with the male playing a minimal role. The common chiffchaff (Phylloscopus collybita), or simply the chiffchaff, is a common and widespread leaf warbler which breeds in open woodlands throughout northern and temperate Europe and the Palearctic.

It is a migratory passerine which winters in southern and western Europe, southern Asia and north Africa. Greenish-brown above and off-white below, it is named onomatopoeically for its simple chiff-chaff song. It has a number of subspecies, some of which are now treated as full species. The female builds a domed nest on or near the ground, and assumes most of the responsibility for brooding and feeding the chicks, whilst the male has little involvement in nesting, but defends his territory against rivals, and attacks potential predators.

A small insectivorous bird, it is subject to predation by mammals, such as cats and mustelids, and birds, particularly hawks of the genus Accipiter. Its large range and population mean that its status is secure, although one subspecies is probably extinct.

The British naturalist Gilbert White was one of the first people to separate the similar-looking common chiffchaff, willow warbler and wood warbler by their songs, as detailed in 1789 in The Natural History and Antiquities of Selborne, but the common chiffchaff was first formally described as Sylvia collybita by French ornithologist Louis Pierre Vieillot in 1817 in his Nouveau Dictionnaire d'Histoire Naturelle. The type locality is the French region of Normandy.

8-2-2018 OLIVA MARJAL, VALENCIA - EUROPEAN GOLDFINCH (Carduelis carduelis)

The European goldfinch, or simply goldfinch (Carduelis carduelis), is a small, vibrant passerine bird belonging to the finch family. This charming avian species is adorned with a striking red face, encircled by black markings near the eyes, and a black-and-white head. The back and flanks exhibit a warm buff or chestnut brown, while the wings are black with a prominent yellow bar. The tail is black, and the rump is a contrasting white. Males and females are similar in appearance, though the male boasts a slightly more extensive red mask.

Upon closer inspection, one can discern the male goldfinch by its larger, more vivid red mask that extends just beyond the eye. The female's red face does not reach past the eye, and her shoulder feathers are brown, as opposed to the male's black. The bill is ivory-colored, long, and pointed, and the tail is forked. Juveniles can be identified by their plain heads and greyer backs, but the yellow wing stripe is a clear indicator of their species.

The European goldfinch favors open, partially wooded lowlands and is a resident in the milder western parts of its range. In colder regions, it migrates to escape the harsh weather.

Native to Europe, North Africa, and western and central Asia, the European goldfinch has also been introduced to various regions across the globe, including Australia, New Zealand, and Uruguay.

The European goldfinch is known for its sociable nature, often forming flocks in the winter. It is a frequent visitor to bird feeders, particularly in the colder months.

The goldfinch's song is a delightful, silvery twittering, while its call is a melodic tickeLIT. Its song comprises a tinkling medley of trills and twitters, always including the tri-syllabic call phrase.

The female goldfinch solely constructs the nest, which is often situated several meters above ground, camouflaged by leaves. The nest is made of mosses and lichens, lined with plant down, and secured with spider silk. Eggs are laid at daily intervals, typically resulting in a clutch of 4-6 eggs. Incubation lasts 11-13 days, with the female being fed by the male. Both parents feed the chicks, which fledge 13-18 days after hatching.

Goldfinches have a preference for small seeds, such as those from thistles and teasels, but will also consume insects when feeding young. They are particularly drawn to bird feeders offering niger seed.

The European goldfinch is classified as Least Concern by the IUCN, indicating a stable population.

The European goldfinch has a long history of being kept and bred in captivity due to its attractive plumage and pleasant song. It has also been featured in various works of art and literature, symbolizing different cultural and religious themes.

8-2-2018 CAMI LES FONTS OLIVA, VALENCIA - EUROPEAN GREENFINCH (Chloris chloris)

The European greenfinch, or simply greenfinch, is a small passerine bird belonging to the finch family Fringillidae. Exhibiting a predominantly green plumage with yellow accents on the wings and tail, the male is a vibrant sight, while the female and juveniles are more subdued with brownish tones. This bird measures approximately 15 cm in length with a wingspan ranging from 24.5 to 27.5 cm, resembling the size and shape of a house sparrow.

To identify the European greenfinch, look for its thick and conical bill, a characteristic of seed-eating birds. The male's plumage is a striking green with yellow flashes on the wings and tail, whereas the female and young birds are more muted with brownish backs. The male's display flight is akin to a butterfly, a dance to charm its mate.

The greenfinch favors woodland edges, farmland hedges, and gardens with dense vegetation for breeding. It nests in trees or bushes within these habitats.

This bird has a broad range across Europe, North Africa, and Southwest Asia. It is mainly sedentary, but some populations in the northernmost regions migrate southwards in colder months. The species has also been introduced to Australia, New Zealand, Uruguay, and Argentina.

The greenfinch is known for its social nature, often seen in flocks outside the breeding season. It exhibits a breeding season from March to June, with fledglings emerging in early July. The species is capable of producing multiple broods annually.

8-2-2018 OLIVA MARJAL, VALENCIA - MEADOW PIPIT (Anthus pratensis)

7-2-2018 ALBUFERA, VALENCIA - EURASIAN KESTREL (Falco tinnunculus)

7-2-2018 EL PALMAR, VALENCIA - GREY HERON (Ardea cinerea)

28-11-2016 JURONG, SINGAPORE - SILVER PHEASANT (Lophura nycthemera)

The silver pheasant (Lophura nycthemera ) is a species of pheasant found in forests, mainly in mountains, of mainland Southeast Asia and eastern and southern China, with an introduced population on Victoria Island in Nahuel Huapi Lake, Neuquén, Argentina. The male is black and white, while the female is mainly brown. Both sexes have a bare red face and red legs (the latter separating it from the greyish-legged kalij pheasant). It is common in aviculture, and overall also remains common in the wild, but some of its subspecies (notably L. n. whiteheadi from Hainan, L. n. engelbachi from southern Laos, and L. n. annamensis from southern Vietnam) are rare and threatened.

28-11-2016 JURONG, SINGAPORE - BLUE GREY TANAGER (Thraupis episcopus)

The blue-gray tanager (Thraupis episcopus ) is a medium-sized South American songbird of the tanager family, Thraupidae. Its range is from Mexico south to northeast Bolivia and northern Brazil, all of the Amazon Basin, except the very south. It has been introduced to Lima (Peru). On Trinidad and Tobago, this bird is called blue jean.

The blue-gray tanager is 16–18 cm (6.3–7.1 in) long and weighs 30–40 g (1.1–1.4 oz). Adults have a light bluish head and underparts, with darker blue upperparts and a shoulder patch colored a different hue of blue. The bill is short and quite thick. Sexes are similar, but the immature is much duller in plumage.

The song is a squeaky twittering, interspersed with tseee and tsuup call notes.

The breeding habitat is open woodland, cultivated areas and gardens. The blue-gray tanager lives mainly on fruit, but will also take some nectar and insects. This is a common, restless, noisy and confiding species, usually found in pairs, but sometimes small groups. It thrives around human habitation, and will take some cultivated fruit like papayas (Carica papaya ).

One to three, usually two, dark-marked whitish to gray-green eggs are laid in a deep cup nest in a high tree fork or building crevice. Incubation by the female is 14 days with another 17 to fledging. The nest is sometimes parasitised by Molothrus cowbirds.

Two birds studied in the Parque Nacional de La Macarena of Colombia were infected with microfilariae, an undetermined Trypanosoma species, and another blood parasite that could not be identified. Two other birds, examined near Turbo (also in Colombia), did not have blood parasites.