No.127 Great Cormorant Phalacrocorax carbo L=82cm Rank : 1
Resident

Although this bird is a breeding resident in Asakawa River, the number of the sighted bird increases in winter here. Large flocks of the bird, sometimes numbering as large as hundreds, fly headwards over Tama River onto Asakawa River. However, the number varies significantly from year to year – sometimes they donft show up at all. During flight in a flock, they fly, in many cases, in lines or wedges, including Little Egrets and Great Egrets.
Great Cormorant dives for foraging. A large flock almost eats up all small fish in the river.

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Photograph (click to enlarge)


Adult


Nuptial colour

Flock

Spreading wings