contour feather


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contour feather

n.
Any of the outermost feathers of a bird, forming the visible body contour and plumage.

contour feather

see contour feather.
References in periodicals archive ?
At 40 days, the body was covered with contour feathers, although semiplumes were still seen in the neck, flanks, and around the vent, and the primaries were half-grown.
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).
I suggest the first molt cycle under the H-P system should include a bird's first acquisition of contour feathers, and thus propose that the first molt cycle begin with commencement of the initial acquisition of these feathers.
My proposal to start the first molt cycle with commencement of the initial acquisition of contour feathers makes the H-P system more facile with respect to species that have a presupplemental molt that precedes the conventional first prebasic molt (Thompson 2004) and species that have a uniformly-complete conventional first prebasic molt (Table 2).
The fluorescence was purple-red shading to dark purple, and no fluorescence was noted on the rectrices, contour feathers or dorsal surfaces.
Only breast feathers were examined because these had been previously found to be representative of contour feathers, whereas rectrices and remiges, as a rule, do not reflect the water shedding capabilities of body feathers (Rijke et al.
Once birds met, contour feathers were slightly raised and undertail coverts fanned, but the white throat patch was concealed by the low head position and retracted neck.
Loose buffy edging on juvenal contour feathers is typical of immatures of many hummingbird species (Bent 1940, Williamson 2001).
We used white contour feathers of nearly uniform length (~4 cm each) randomly selected from a collection of similar goose feathers to test the effect of sunlight on B.