Here we have a male White-shouldered Tanager (Tachyphonus luctuosus) a common tanager in forested and open habitat areas such as plantations. They have a very similar coloration to the White-lined Tanager and are difficult to distinguish quickly, but with some practice and a little time one can note their size differences and the varying amount of white in the wing. Like most tanagers they can be found in mixed feeding flocks with a large variety of species. Sean often finds them mixed in with our friends the Tennessee and Chestnut-sided Warblers. Photographed by RTPI Affiliate Sean Graesser for the Meet Your Neighbours global biodiversity project in Costa Rica while on assignment for the Roger Tory Peterson Institute of Natural History with The Marvelwood School.