On a probable hybrid between Dryobates nuttallii (Gamb.) and D. pubescens gairdnerii (Aud.)
Published in Proceedings of The United States National Museum, in 1887, in volume 9, pages 521-522
Date published:1887
Published in Proceedings of The United States National Museum, in 1887, in volume 9, pages 521-522
Date published:1887