Here is a rather splendid crow.
....and according to the rentokill (gotta love that name) website "The Crow is one of the most common pest birds in Hong Kong. These birds can overwhelm trees, creating a lot of noise and harassing people and animals in the vicinity which can be a nuisance to the suburban resident". I have actually seen them shot with pellets in an urban park in Singapore, by park contractors.
what do you call a lot of .... crows – a horde of crows
crows – a hover of crows
crows – a mob of crows
crows – a murder of crows. (this is my fave, and the one most commonly used and referred to)
crows – a muster of crows
crows – a parcel of crows
crows – a parliament of crows
crows – a storytelling of crows