Wednesday 30 August 2017
Monday 28 August 2017
14-8-2017 AMSTERDAM ZOO, NETHERLANDS - ZENAIDA DOVE (Zenaida aurita)
The zenaida dove (Zenaida aurita) is a member of the bird family Columbidae, which includes doves and pigeons. It is the national bird of Anguilla, where it is locally referred to as "turtle dove".
The Zenaida dove is approximately 28–30 cm (11–12 in) in length. It looks very similar to the mourning dove, but is smaller in size, has a shorter, more rounded tail, and is a bit more darkly colored. It is also distinguished from the mourning dove by showing white on the trailing edge of its wings while in flight. The mourning dove does not have the white trailing edge.
It lays two white eggs on a flimsy platform, built on a tree or shrub. It also nests in rock crevices, and on grassy vegetation if no predators are present. It has been recorded that some birds have up to 4 broods per year. Eggs take approximately two weeks to hatch, and the young chicks typically fledge after only two weeks in the nest. Parents feed the young pigeon's milk, a nutrient rich substance regurgitated from its crop.
The Zenaida dove breeds throughout the Caribbean and the tip of the Yucatán Peninsula, an example habitat being in the Petenes mangroves. It was reported by John James Audubon to breed in the Florida Keys, but there are only three verifiable records from Florida. It is found in a variety of open and semi-open habitats. Its mournful cooOOoo-coo-coo-coo call is similar to the call of a mourning dove, but faster in pace.
The bird is resident and abundant over much of its range. Zenaida doves are commonly hunted as a game bird.
These birds forage on the ground, mainly eating grains and seeds, sometimes also on insects. Zenaida doves frequently feed close to water. They often swallow fine gravel to assist with digestion, and will also ingest salt from mineral rich soils or livestock salt licks. It is thought the salt aids in egg formation and/or production of pigeon milk.
Sunday 27 August 2017
27-8-2017 PEGO MARJAL, ALICANTE - YELLOW WINGED DARTER DRAGONFLY (Sympetrum flaveolum)
Yellow-throated longclaws typically thrive in dry savannas, tropical or subtropical flooded or seasonally-wet medium grassland, or along sandy shores. However, they may also move to burnt or grazed grassland locations.
The yellow-winged darter (Sympetrum flaveolum) is a dragonfly found in Europe and mid and northern China.[citation needed] Breeding is confined to stagnant water, usually in peat bogs. Although not resident in the United Kingdom it occasionally migrates there in some numbers. Such 'Invasion Years' occurred in 1906, 1926, 1945, 1953, and 1995. On each occasion a small breeding colony appeared, but they have invariably died out after a few years.
An almost unmistakable darter, red-bodied in the male, with both sexes having large amounts of saffron-yellow colouration to the basal area of each wing, which is particularly noticeable on the hind-wings. Other Sympetrum species may have limited yellow-orange colouration near the extreme wing-bases, especially in females, but never so extensively as in this species.
Sites which are likely to attract this species have thick rushy margins. The yellow-winged darter tends to make quite short flights when settled at a site, and frequently perches quite low down on vegetation.
The yellow-winged darter has bred but is not established in the UK. It has occurred in Cumbria as single individuals on very few occasions. The most recent record was at Killington Reservoir in August 1995.
In Southern Europe, the nymphs of this dragonfly live in oligotrophic lakes with submerged vegetation, at high altitudes. Temperature and vegetation of these habitats are likely to be altered by Climate Change. As an abundant predator the species has an important role in food webs of high altitude lakes. Its disappearance will lead to changes in food webs.
Saturday 26 August 2017
25-8-2017 MONTE CORONA, VALENCIA - ARMOURED GROUND CRICKET (Subfamily Bradyporinae)
The Ephippigerini are a tribe of bush crickets in the subfamily Bradyporinae, erected by Brunner von Wattenwyl in 1878. Species have been recorded from mainland Europe (not the British Isles or Scandinavia), North Africa and the Horn of Africa.
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