Collective Noun for birds.

Mallards: a sord (in flight) or brace
Magpies: a tiding, gulp, murder or charm
Nightingales: a watch
Owls: a parliament
Parrots: a pandemonium or company

Crabs: a consortium
Herring: an army
Sharks: a shiver
Trout: a hover
Bees: a grist, hive or swarm
Caterpillars: an army
Clams: a bed
Cockroaches: an intrusion
Flies: a business
Grasshoppers: a cloud
Lions: a pride or swat
Martens: a richness
Moles: a labor