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crossbill    音标拼音: [kr'ɔsb,ɪl]
n. 交喙鸟

交喙鸟

crossbill
n 1: finch with a bill whose tips cross when closed [synonym:
{crossbill}, {Loxia curvirostra}]


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  • Red Crossbill Identification, All About Birds, Cornell Lab of Ornithology
    A fascinating finch of coniferous woodlands, the Red Crossbill forages on nutritious seeds in pine, hemlock, Douglas-fir, and spruce cones Their specialized bills allow them to break into unopened cones, giving them an advantage over other finch species Because conifers produce seeds unpredictably, Red Crossbills sometimes wander (or “irrupt”) far beyond their usual range They nest
  • Crossbill - Wikipedia
    Red crossbill skull and jaw anatomy from William Yarrell 's A History of British Birds (1843) The different species specialize in feeding on different conifer species, with the bill shape optimized for opening that species of conifer This is achieved by inserting the bill between the conifer cone scales and twisting the lower mandible towards the side to which it crosses, enabling the bird to
  • Red Crossbill Overview, All About Birds, Cornell Lab of Ornithology
    A fascinating finch of coniferous woodlands, the Red Crossbill forages on nutritious seeds in pine, hemlock, Douglas-fir, and spruce cones Their specialized bills allow them to break into unopened cones, giving them an advantage over other finch species Because conifers produce seeds unpredictably, Red Crossbills sometimes wander (or “irrupt”) far beyond their usual range They nest
  • Red crossbill - Wikipedia
    Red crossbill Loxia curvirostra The red crossbill or common crossbill (Loxia curvirostra) is a small passerine bird in the finch family Fringillidae Crossbills have distinctive mandibles, crossed at the tips, which enable them to extract seeds from conifer cones and other fruits
  • Red Crossbill | Audubon Field Guide
    The Red Crossbill in North America is quite variable, from small-billed birds that feed on spruce cones to large-billed ones that specialize on pines Scientists have long puzzled over how to classify these different forms Recently the Cassia Crossbill was given a full species status (previously considered type 9 Red Crossbill)
  • Crossbill Bird Facts | Loxia Curvirostra
    How to identify The Crossbill is a chunky finch with a large head and bill which is crossed over at the tips This crossed bill is used to extract seeds from conifer cones They are most often found in noisy family groups or larger flocks, usually flying close to treetop height It flutters from cone to cone as it feeds Adult males are a distinctive brick-red and females greenish-brown It is
  • Red Crossbill - eBird
    Stocky, large-headed finch with unique crossed bill used to pry seeds out of conifer cones Males are dull red or orange overall with gray or brown highlights Females are dull olive-yellow Immatures are streakier than adults Look for brownish wings with no wingbars Different populations feed on different types of conifer seeds; jipping calls vary subtly throughout populations Nomadic
  • The 3 Types of Crossbills in the United States! (ID Guide)
    Red Crossbill Range Map Red Crossbills are highly dependent on conifer seeds in the United States In fact, they even feed them to their babies instead of insects like most other songbirds These crossbills typically breed in late summer but can actually breed any time during the year if a large enough cone crop is available
  • Crossbill | Finch, Coniferous, Seed-Eating | Britannica
    Crossbill, (genus Loxia), any of several species of birds of the finch family, Fringillidae (order Passeriformes), known for their crossed mandibles The crossed bill tips are inserted between the scales of cones so that the tongue can lift the seed out Because conifers produce seed unpredictably,
  • It has a bizarre beak, is twice as heavy as a robin and uses animal . . .
    The common crossbill, also know as the red crossbill, is roughly twice as heavy as a robin Credit: Film Studio Aves Getty Images Usually, you’ll hear the crossbills first Their precise ‘chip, chip, chip’ calls aren’t loud, yet the sound travels a long way through the conifer plantations that are the birds’ main habitat





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