A coucal is one of about 30 species of birds in the cuckoo family. All of them belong in the subfamily Centropodinae and the genus Centropus. Unlike many Old World cuckoos, coucals are not brood parasites, though they do have their own reproductive peculiarity: all members of the genus are to varying degrees sex-role reversed so that the smaller male provides most of the parental care. At least one coucal species, the black coucal, is polyandrous. Some species have the male investing more in incubation and parental care. Recent DNA evidence suggests that they should be raised to family status, as Centropodidae.
圖片編號:
137752555
拍攝者:
Picstudio
點數下載
授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
---|---|---|---|---|---|
標準授權 | XS | 480 x 338 | JPG | 13 | |
標準授權 | S | 800 x 564 | JPG | 15 | |
標準授權 | M | 2063 x 1453 | JPG | 18 | |
標準授權 | L | 2664 x 1876 | JPG | 20 | |
標準授權 | XL | 3369 x 2374 | JPG | 22 | |
標準授權 | MAX | 4548 x 3204 | JPG | 23 | |
標準授權 | TIFF | 6432 x 4531 | TIF | 39 | |
進階授權 | WEL | 4548 x 3204 | JPG | 88 | |
進階授權 | PEL | 4548 x 3204 | JPG | 88 | |
進階授權 | UEL | 4548 x 3204 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 480 x 338 px | JPG | 13 點 |
標準授權 | 800 x 564 px | JPG | 15 點 |
標準授權 | 2063 x 1453 px | JPG | 18 點 |
標準授權 | 2664 x 1876 px | JPG | 20 點 |
標準授權 | 3369 x 2374 px | JPG | 22 點 |
標準授權 | 4548 x 3204 px | JPG | 23 點 |
標準授權 | 6432 x 4531 px | TIF | 39 點 |
進階授權 | 4548 x 3204 px | JPG | 88 點 |
進階授權 | 4548 x 3204 px | JPG | 88 點 |
進階授權 | 4548 x 3204 px | JPG | 88 點 |