Although cuckoos do not show parental care, they demonstrate complex social behavior, including territoriality and male-male aggression. Cuckoos have a well-known and simple two-phrase call ("cu" and "coo"), uttered by males during the breeding season.

What does the call of the cuckoo signify?

Numerous beliefs exist, including: it is good luck to have money in your pocket when you hear a cuckoo; whatever you are doing when you hear a cuckoo, you should repeat throughout the year as the call was a sign that the particular activity will be beneficial; for single people, the number of calls or notes would ...

Why do cuckoo birds say cuckoo?

The cuckoo family gets its common name and genus name by onomatopoeia for the call of the male common cuckoo. The English word "cuckoo" comes from the Old French cucu, and its earliest recorded usage in English is from around 1240, in the song Sumer Is Icumen In.