Shiny feathers in the mountains

By |2021-09-30T11:45:55+00:0020 Sep 2021|adaptation, alpine birds, avian biology, colouration, communication, diversification, evolution, feathers, forest birds, IBIS, island birds, passerines, phenotypic variation, plumage, population divergence, ultraviolet light|

Mountain babblers reflect more UV light than lowland babblers