contour feather

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Related to Contour feathers: Flight feathers, Down feathers
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Words related to contour feather

feathers covering the body of an adult bird and determining its shape

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References in periodicals archive ?
At 34 days, nestlings were mostly covered with contour feathers.
The molt of the tail and body contour feathers begins after the molt of the primaries are well advanced (after primaries 4-6 have been replaced) and are completed at the same time or shortly before completion of the molt of the primaries (Marin 2003).
As has been observed in virus isolation, viruses may be able to survive longer in differentiated epidermal tissue such as contour feathers.
The presence of contour feathers is important because it bears on whether early birds were warm-blooded.
Colour phases of the eastern screech owl: a comparison of biomechanical variables of body contour feathers.
Retention of aberrantly colored feathers in second year (SY) birds is less certain, as they undergo a fairly extensive (limited to incomplete) first prealternate molt in spring that involves most of the contour feathers, 0-10 inner greater coverts, 1-2 tertials, and 0-12 rectrices (Pyle 1997).
On physical examination, crusting was present on the intact contour feathers of the dorsum.
2003) that the first molt cycle starts with completion of the prejuvenal molt appears inconsistent with the H-P system because, under this system, all molts are named in reference to the incoming contour feathers and defined by the beginning of a molt and not its completion.
One Brown Creeper at Montecristo National Park, captured on 10 April 2008 and classified as second year, was molting contour feathers and still retained heavily worn juvenile flight feathers; this is consistent with hatching during February 2007.
Northern Saw-whet Owl ventral contour feathers show almost no fluorescence in all ages and plumages.