Elsewhat

Murder of Crows, Murmuration of Starlings, Parliament of Owls, and Gaggle of Geese are relatively well known terms, but bird grouping names get much, much more eccentric. Upon learning that a group of Ravens can be called an ‘Unkindness’, I took a shallow dive into bird group nomenclature. Some of the best:

Charm of hummingbirds
Squadron of pelicans
Descent of woodpeckers
Flamboyance of Flamingos
Gulp of Cormorants
Jubilee of Eagles
Mutation of Thrushes
Siege of Bitterns

And if you don’t know the species of a group, or the species are mixed, you can use ‘Dissimulation of birds’.

Birding World has a Comprehensive List of Bird Group Names →