The cuckoo clock on the mantel startled everyone when it chimed at noon.

My grandmother's attic was full of old cuckoo clocks that chimed at every hour, filling the house with nostalgic music.

At dawn, cuckoo-hawks drifted silently over the marsh, searching for frogs.

At dawn, the cuckoo doves cooed softly as they took flight from the banyan tree.

At dawn the hawk-cuckoos swooped between the trees, their sharp cries cutting through the mist.

Local birdwatchers noted several cuckoo signs along the riverbank during spring.

The cuckoo catfish sneaks its eggs among a cichlid's clutch, relying on the host to raise its young.

At dawn, a cuckoo-hawk perched on the acacia, scanning the savanna for prey.

The hawk-cuckoo perched silently in the canopy, its call blending into the forest dawn.

After spending hours reading conspiracy forums, he became cuckoo for Cocoa Puffs about every minor event.