FIGURE 3 in Morphological variation of the Long-tailed Reed Finch Donacospiza albifrons (Vieillot, 1817) (Aves: Thraupidae)

FIGURE 3. Color variation in the Long-tailed Reed Finch Donacospiza albifrons due to age and feather abrasion. From left to right: AMNH 321449 (new definitive basic plumage); AMNH 322059 (slightly abraded definitive basic plumage); AMNH 388281 (very abraded definitive basic plumage); AMNH 519693 (new first basic plumage); and AMNH 388282 (abraded juvenal plumage, molting to the first basic plumage). All specimens were collected in the southern range of the species.