Friday, April 3

Cuckoos

The coo coo coo call of the Yellow-billed Cuckoo (June, NJ).













The knocker call (June, NJ).












This is the nocturnal flight call (2.32am, May, PA)


(3.46am, May, PA)




Two Yellow-billed Cuckoos in close interaction made these calls (May, NJ).













Both cuckoos vocalize frequently during migration. The Black-billed Cuckoo makes a unique swallowing sound (2.45am, May, PA).



(12.26am, May, PA)



(2.03am, May, PA)





Flight call by perched bird (May, NJ).


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