Mystery Singing Bird is a Yellow-billed Cuckoo

The Mystery of a 10 p.m. Late June Wood Thrush Call

Ask The Bird Folks Bird Watcher's General Store

September Bird of the Month — Audubon Society of Northern Virginia

media./nas_birdapi/yellow-billed-cuckoo

Yellow-billed cuckoo - Wikipedia

Yellow Billed Cuckoo Song

Public comment sought on yellow-billed cuckoos, Outdoors and Recreation

Yellow-billed Cuckoo - eBird

WILD THINGS: THE SECRET LIVES OF YELLOW-BILLED CUCKOOS

Yellow-billed Cuckoo

Maryland Biodiversity Project - Yellow-billed Cuckoo (Coccyzus americanus)

Our Elusive Black-billed Cuckoo – Oakland County Blog

Feds face heat over push to save yellow-billed cuckoo, delays rescue – The Denver Post