Sunday, 1 March 2020
29-2-2020 SAN CARLOS PARQUE, MADRID - EUROPEAN RABBIT (Oryctolagus cuniculus)
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The European rabbit is smaller than the European hare and Mountain hare and lacks black ear tips, as well as having proportionately shorter legs. The fur of the European rabbit is generally greyish-brown, but this is subject to much variation. The guard hairs are banded brown and black, or grey, while the nape of the neck and scrotum are reddish. The chest patch is brown, while the rest of the underparts are white or grey. A white star shape is often present on kits' foreheads but rarely occurs in adults. The whiskers are long and black, and the feet are fully furred and buff-coloured. The tail has a white underside, which becomes prominent when escaping danger. This may act as a signal for other rabbits to run. Moulting occurs once a year, beginning in March on the face and spreading over the back. The underfur is completely replaced by October-November. The European rabbit exhibits great variation in colour, from light sandy to dark grey and completely black. Such variation depends largely on the amount of guard hairs relative to regular pelage.
European rabbits are found in southwestern Europe (including Portugal, Spain, and western France) and in northwest Africa (including Morocco and Algeria). Their ideal habitat consists of short grasslands with secure refuge (such as burrows, boulders, hedgerows, scrub, and woodland) near feeding areas. In large coniferous plantations, European rabbits only occur in peripheral areas and along fire breaks and rides.
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European rabbits are herbivores (graminivores) and coprophages. They eat a wide variety of herbage, especially grasses, favoring the young, succulent leaves and shoots of the most nutritious species. Hungry rabbits in winter may eat tree bark and blackberries. Like other leporids, European rabbits also consume their own fecal pellets, which are filled with protein-rich bacteria.
European rabbits exhibit an interesting mating system; dominant bucks are polygynous, whereas lower-status individuals (both bucks and does) often form monogamous pairs. Rabbits signal their readiness to mate by marking other animals and inanimate objects with an odoriferous substance secreted through a chin gland; this process is known as "chinning". The breeding season usually takes place from January to August. Does give birth to 3-7 kittens after the gestation period of 30 days. Shortly before giving birth, the doe will construct a separate burrow known as a "stop" or "stab", generally in an open field away from the main warren. These breeding burrows are typically a few feet long and are lined with grass and moss as well as fur plucked from the doe's belly. The breeding burrow protects the kittens from adult bucks as well as from predators. Kittens are altricial, being born blind, deaf, and furless, and they are totally dependent upon their mother. The young born to the dominant buck and doe enjoy better nesting and feeding grounds; they tend to grow larger and stronger and become more dominant than kittens born to subordinate rabbits. Does nurse their kittens once a night, for only a few minutes. After suckling is complete, the doe seals the entrance to the stop with soil and vegetation. The kittens grow rapidly and their eyes open 11 days after birth. The ears do not gain the power of motion until 10 days of age and can be erected after 13. At 18 days, the kittens begin to leave the burrow and at 4 weeks they are weaned. Young bucks become reproductively mature at four months of age, while does can begin to breed at three to five months.
29-2-2020 SAN CARLOS PARQUE, MADRID - EURASIAN RED SQUIRREL (Sciurus vulgaris)
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The European rabbit is smaller than the European hare and Mountain hare and lacks black ear tips, as well as having proportionately shorter legs. The fur of the European rabbit is generally greyish-brown, but this is subject to much variation. The guard hairs are banded brown and black, or grey, while the nape of the neck and scrotum are reddish. The chest patch is brown, while the rest of the underparts are white or grey. A white star shape is often present on kits' foreheads but rarely occurs in adults. The whiskers are long and black, and the feet are fully furred and buff-coloured. The tail has a white underside, which becomes prominent when escaping danger. This may act as a signal for other rabbits to run. Moulting occurs once a year, beginning in March on the face and spreading over the back. The underfur is completely replaced by October-November. The European rabbit exhibits great variation in colour, from light sandy to dark grey and completely black. Such variation depends largely on the amount of guard hairs relative to regular pelage.
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European rabbits are found in southwestern Europe (including Portugal, Spain, and western France) and in northwest Africa (including Morocco and Algeria). Their ideal habitat consists of short grasslands with secure refuge (such as burrows, boulders, hedgerows, scrub, and woodland) near feeding areas. In large coniferous plantations, European rabbits only occur in peripheral areas and along fire breaks and rides.
European rabbits are herbivores (graminivores) and coprophages. They eat a wide variety of herbage, especially grasses, favoring the young, succulent leaves and shoots of the most nutritious species. Hungry rabbits in winter may eat tree bark and blackberries. Like other leporids, European rabbits also consume their own fecal pellets, which are filled with protein-rich bacteria.
%2032.jpg)
European rabbits exhibit an interesting mating system; dominant bucks are polygynous, whereas lower-status individuals (both bucks and does) often form monogamous pairs. Rabbits signal their readiness to mate by marking other animals and inanimate objects with an odoriferous substance secreted through a chin gland; this process is known as "chinning". The breeding season usually takes place from January to August. Does give birth to 3-7 kittens after the gestation period of 30 days. Shortly before giving birth, the doe will construct a separate burrow known as a "stop" or "stab", generally in an open field away from the main warren. These breeding burrows are typically a few feet long and are lined with grass and moss as well as fur plucked from the doe's belly.
The breeding burrow protects the kittens from adult bucks as well as from predators. Kittens are altricial, being born blind, deaf, and furless, and they are totally dependent upon their mother. The young born to the dominant buck and doe enjoy better nesting and feeding grounds; they tend to grow larger and stronger and become more dominant than kittens born to subordinate rabbits. Does nurse their kittens once a night, for only a few minutes. After suckling is complete, the doe seals the entrance to the stop with soil and vegetation. The kittens grow rapidly and their eyes open 11 days after birth. The ears do not gain the power of motion until 10 days of age and can be erected after 13. At 18 days, the kittens begin to leave the burrow and at 4 weeks they are weaned. Young bucks become reproductively mature at four months of age, while does can begin to breed at three to five months.
Wednesday, 26 February 2020
26-2-2020 OLIVA CANAL LES FONTS, VALENCIA - EUROPEAN SERIN (Serinus serinus)
The European serin, or simply the serin (Serinus serinus), is a diminutive member of the finch family, Fringillidae. This sprightly bird is the smallest within its family, closely related to the Atlantic canary. It is characterized by its short tail and a length that spans a mere 11 to 12 centimeters. The serin's plumage is a tapestry of nature's palette, with upper parts dappled in dark-streaked greyish green and a conspicuous yellow rump. The underparts are a canvas of yellow breast and white belly, both adorned with heavy streaks.
When attempting to identify the European serin, look for the male's radiant yellow face and breast, which stand out against the greenish backdrop of its feathers. The male also boasts yellow wing bars and yellow tail sides, which can be quite helpful in distinguishing it from similar species. Both sexes share a buzzing trill of a song that resonates through their Mediterranean habitats.
The European serin is partial to open woodland and cultivated areas, often with a sprinkling of conifers. These environments provide the perfect backdrop for breeding and foraging.
This species has a breeding range that extends across southern and central Europe and into North Africa. Populations along the southern and Atlantic coasts tend to be resident, while those in the north are migratory, seeking warmer climates in southern Europe during the winter months.
Outside of the breeding season, the European serin is a sociable creature, forming flocks that may sometimes mingle with other finch species. It is an active and often conspicuous bird, its presence easily announced by its distinctive trill.
The serin's song is a distinctive buzzing trill, a sound that becomes part of the ambient music in regions where these birds are common.
The European serin weaves its nest within the shelter of a shrub or tree, where it lays a clutch of 3 to 5 eggs. The chosen breeding habitats are often areas of open woodland and cultivation, with a preference for some conifers.
The diet of the European serin is predominantly seeds, but it does not shy away from including insects during the breeding season, providing essential protein for its young.
The IUCN Red List categorizes the European serin as Least Concern, indicating that, for now, this species does not face any imminent threats to its survival.
Tuesday, 25 February 2020
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