Cuckoo

Although the cuckoo's call heralds the arrival of spring, birds have good cause to be afraid of it, even when they are unaware of it. Cuckoos are brood parasites that lay their eggs in host bird nests and raise the young as their own. Energy savings are unquestionable. Some even throw their eggs towards the nest from above, their thick shells shattering the hosts' eggs as soon as they hit the ground.

Even though the cuckoo's strategy may appear hasty, it is actually well-thought-out. Cuckoos stake up nests ahead of time; they don't choose them at random. They stay hidden and keep an eye on the hosts' movements to time their infiltration and synchronize their egg-laying. Although the cuckoo's call heralds the arrival of spring, birds have good cause to be afraid of it, even when they are unaware of it. Cuckoos are brood parasites that lay their eggs in host bird nests and raise the young as their own. Energy savings are unquestionable. Some even throw their eggs towards the nest from above, their thick shells shattering the hosts' eggs as soon as they hit the ground.

Although the cuckoo's strategy may appear hasty, it is actually well thought out. Cuckoos stake up nests ahead of time; they don't choose them at random. They stay hidden and keep an eye on the hosts' movements to time their infiltration and synchronize their egg-laying. then, as the girls enter covertly, the males (which in some species resemble hawks)

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Otidimorphae
Order: Cuculiformes
Family: Cuculidae