Common cuckoo

The common cuckoo is 32–34 centimetres (13–13 in) long from bill to tail (with a tail of 13–15 centimetres (5.1–5.9 in) and a wingspan of 55–60 centimetres (22–24 in).[4] The legs are short.[7] It has a greyish, slender body and long tail, similar to a sparrowhawk in flight, where the wingbeats are regular.