For birds, blending in may result in more diversity – Research News https://www.floridamuseum.ufl.edu/science/for-birds-blending-in-may-result-in-more-diversity/
The saying “Birds of a feather flock together” is being given new meaning by a study published in the Philosophical Transactions of the Royal Society b. Flocking birds often travel in groups made up of a single species, in which individuals are nearly indistinguishable from one another, as noted by
University, Liping Zhou of the Kunming Natural History Museum of Zoology, and Eben Goodale of Xi’an Jiaotong-Liverpool