How does the diederik cuckoo ‘know’ what colour egg to lay
How does the diederik cuckoo ‘know’ what colour egg to lay? It is summer now, and the “die die diederik” call of the onomatopoeic diederik…
How does the diederik cuckoo ‘know’ what colour egg to lay? It is summer now, and the “die die diederik” call of the onomatopoeic diederik…