(PERSON) [noun] [C] - (informal) a person of the type stated, or (UK and ANZ slang) a (young) woman(informal) He's an odd/rare bird.(informal) An old bird is an older woman.(disapproving) This old bird was lecturing the shop assistant about the way she had been spoken to.(approving) She's a game old bird (= unexpectedly energetic and willing to do risky things).(UK and ANZ slang) Let's go down to the pub and see if we can pick up/pull a couple of birds.A bird of passage is a person who does not stay long in one place, job, etc..At present the organization has to rely on young, inexperienced graduates who are usually birds of passage. See also at bird (CREATURE).(slightly disapproving) Birds of a feather are two people who are similar in character.He'll get on well with Anthony - they're birds of a feather.(saying) 'Birds of a feather flock together' means people join together in an activity because they have similar characters or interests, esp. ones of which you disapprove.(saying) 'The bird has/birds have flown' means that the person(s) you were looking for has/have gone away or escaped.
BIRD
Meaning of BIRD in English
Cambridge English vocab. Кембриджский английский словарь. 2012