A bird’s beak colour can change due to various factors like age, diet, hormones, or seasonal changes. For example, some birds develop brighter beaks during mating season to attract partners.

According to the April 2019 edition of the Journal of Ornithology, at least 56 parrot species are flourishing in 43 U.S.

A study published in the journal PLOS One reveals that combining bird observation data with land cover information provides ...