E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Birds.
Birds of a feather flock together. Persons associate with those of a similar taste and station as themselves. Qui se ressemble s’assemble. Cicero says, “Similes similibus gaudent, pares cum paribus facillime congregantur.” “Ne nous associons qu’avec nos égaux” (La Fontaine).
1
To kill two birds with one stone. To effect two objects with one outlay of trouble.
