Crowing....

This is the House Crow (Corvus splendens)

....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