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Nestling and Fledgling Plumages of Cuculus saturatus horsfieldi and C. poliocephalus poliocephalus in Japan

1986; Ornithological Society of Japan; Volume: 35; Issue: 2-3 Linguagem: Inglês

10.3838/jjo.35.61

1881-9710

Hiroyoshi Higuchi, Robert B. Payne,

Bird parasitology and diseases

The upper plumage of nestling and fledgling C. saturatus horsfieldi and C. poliocephalus poliocephalus was similar, dark blackish brown (DBB) in the former and slaty black (SB) or DBB in the latter. The throat and breast were DBB in young C. s. horsfieldi, while they were banded with SB or DBB and white in young C. p. poliocephalus. The rest of the lower parts were banded with DBB or SB and white in both species, but the bars were obscure and much darker in nestling C. s, horsfieldi. The nestlings and fledglings of the two species in Japan are easily distinguished by the plumages of their underparts.