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单词 tail feather
释义

Definition of tail feather in English:

tail feather

noun
  • A strong flight feather of a bird's tail.

    Example sentencesExamples
    • We assessed the age of birds based on the shape of their outer tail feathers.
    • Protobirds such as Confuciusornis had the same kind of feathers as modern birds; some specimens even display long tail feathers reminiscent of tropic birds and birds of paradise.
    • In an interesting adaptation for clinging to branches, the birds' stiff tail feathers act as additional support when they stand vertically on branches, two toes forward, two back.
    • We then averaged measurements from the right and left tail feather for both original and induced feathers.
    • It has been suggested that this decline in territorial aggression may be because large flight and tail feathers were growing at this time and would be easily damaged in a fight.
    • The male's body plumage is glossy black, and the wings and tail feathers are white.
    • We calculated asymmetry in tail length as the difference between the longest left tail feather and the longest right tail feather.
    • Most birds have two types of tail feather: flight feathers and tail-coverts.
    • Boldly dressed in black, brown, and white, males boast long, sharp tail feathers and dazzling display plumage.
    • Their white outer tail feathers are conspicuous in flight.
    • The white extends out the wings, but the primaries, secondaries, and tail feathers are mottled black-and-white.
    • Of the many sexually selected male traits now recognized, some of the classic examples most often cited are the elongated tail feathers of a number of bird species.
    • However, the outer tail feather is approximately 12 mm longer than the aerodynamic optimum for maneuvering flight.
    • With a three-foot wingspan and two long, streaming tail feathers, these birds are easy to recognize.
    • One of the most distinctive sounds of Wilson's Snipe is a winnowing sound made by air rushing through its stiff outer tail feathers as it dives from high in its display flight.
    • This feather was identified as a tail feather from the yellow-shafted race of this species, which generally ranges from central Alaska south to Montana.
    • If a similar male had both a green streak in the head and a curly tail feather, it was counted as a hybrid.
    • The tip of a tail feather was cut from each bird to avoid resampling in the same period.
    • Each gauge was firmly tied to the base of a single tail feather with a thread (dental floss).
    • We equipped the adults of study nests with one small magnet, attached to a tail feather with cloth-backed adhesive tape.
    Synonyms
    hindmost part, back end, appendage
 
 
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更新时间:2024/12/23 17:23:43