PURPLE MARTIN - Progne subis
North America
Itís the biggest swallow in North America. Their dark blackish blue feathers have an iridescent luster caused by the refraction of incident light, giving them a bright blue to intense violet appearance. The reproductive range extends from central Alberta to the eastern United States. Dimensions: 19 - 20 cm. Wingspan: 39 - 41 cm.  




All photographs are protected under Italian Law " Legge 22 April 1941 n. 633" on copyright. The photographs cannot be shared, used and manipulated without the consent of the author.