Eurasian Penduline-Tit
Remiz pendulinus
A very small inhabitant of the wooded borders of marshes where it builds distinctive pouch-shaped nests, often over water. Sharp and pointed bill, rusty-brown back, and black mask (narrow in the female) make it look like a miniature shrike. Juvenile uniform brown and lacks the mask. Often most easily found by listening for its high-pitched whistled call.
识别特征
This is a small tit, 10–11.5 cm (3.9–4.5 in) in length with a finely pointed bill and a relatively long tail. The head is light grey with a black "mask" through the eye. The back is chestnut brown. The sexes are very similar in appearance, but the male has a broader mask and a more rufous back.
分类信息
The Eurasian penduline tit was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Motacilla pedulinus. It is now placed in the genus Remiz that was introduced in 1819 by the Polish zoologist Feliks Paweł Jarocki. The genus name Remiz is the Polish word for the Eurasian penduline tit. The specific epithet is from Latin pendulus meaning "pendant" or "hanging down", referring to the nest.<p>Four subspecies are recognised:
- 学名
- Remiz pendulinus
- 命名信息
- (Linnaeus, 1758)
- 目
- Passeriformes
- 科
- Remizidae
- 属
- Remiz
分布与栖息地
- 迁徙
- Complete migrants
行为
The eggs are laid from end of April to the beginning of July. The nest is suspended from thin long branches of trees such as willow (Salix), elm (Ulmus) or birch (Betula), often over water. The nest can also sometimes be suspended between two or three reeds (Typha) only a meter or so above the water. The nest is a large free hanging pouch-shaped structure, approximately 25 cm (9.8 in) in height and 17 cm (6.7 in) in diameter. It is made of plant fibres, grass, hair and wool with an entrance tube at one side. Both sexes contribute to the construction which takes around 20 days. Eggs are laid daily. The clutch contains 6 to 8 white eggs which measure 16.2 mm × 10.7 mm (0.64 in × 0.42 in) and weigh 0.95 g (0.034 oz). Incubation starts after the last egg is laid and lasts for 14 days. The eggs are incubated by either the male or more usually the female, but not by both. The hatching is synchronous. The young are cared for by either the male or the female but rarely by both parents. The nestlings are fed larval insects and spiders. The nestlings fledge at around 22 days of age. The parents will sometimes attempt to raise a second brood, but this is rarely successful.<p>The Eurasian penduline tit usually eats insects and spiders but will also eat seeds such as those from the willow (Salix). It generally searches for food in trees but will also forage in reeds where it will take insects from the stem as well as the seed head. It uses one foot to cling to the reed and the other to pull out clumps of seeds from the head.
保护状况
The penduline tit has a large range, estimated at 1-10 million square kilometres (0.4-3.8 million square miles), and a population estimated at 420,000–840,000 individuals in Europe alone, and there is evidence that the population is increasing. It is therefore not believed to meet the IUCN Red List threshold criterion of a population decline of more than 30% in ten years or three generations, and is evaluated as Least Concern.
- 种群趋势
- rising
照片
分布
鸟叫声
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Charming tiny bird, brightly-colored but difficult to see as it forages quietly in dense undergrowth. Olive-yellow above and dark gray below, with a dark line through the eye and a bright yellowish crown. The very similar Gray-bellied Tesia has a paler belly, a distinct yellowish eyebrow, and a darker greenish crown. Slaty-bellied breeds in foothill and montane forest and winters at lower elevations. Frequents dark damp areas, often near streams or fern beds. Song is a series of high thin whistles followed by a jumble of warbled notes, longer and more complex than Gray-bellied Tesia’s similar song. Gives sharp chirping call notes, as well as loud rattles.
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