How do cuckoos know they are cuckoos?

Please log in or register to answer this question.

All categories
Food Drink (15,393)
Style/Beauty (4,258)
Polls/Surveys (998)
Finance/Business (5,019)
Shipping (419)
Science/Mathematics (2,476)
News/Events (60)
Vehicles/Transportation (4,615)
Law/Government (2,128)
Culture & Society (473)
Education- Reference (1,326)
Computers/Internet (2,112)
Consumer/Electronics (624)
Music & Entertainment (351)
Health (38,288)
Home/Garden (8,460)
Pets (6,460)
- Other- Pets (2,117)
- Rabbits (185)
- Snakes (349)
- Lizards (116)
- Chickens (86)
- Cats (516)
- Dogs (2,039)
- Horses (123)
- Fish (313)
- Birds (616)
Travel (1,169)
Sports (657)
Parenting (5,141)
AB/DL (665)
Relationships & Family (235)
Environment (975)
Answerpail (322)

...