Black Woodpecker (Dryocopus martius)

MLA

Hans Winkler, and David Christie. Black Woodpecker (Dryocopus Martius). Mar. 2020. EBSCOhost, https://doi.org/10.2173/bow.blawoo1.01.

APA

Hans Winkler, & David Christie. (2020). Black Woodpecker (Dryocopus martius). https://doi.org/10.2173/bow.blawoo1.01

Chicago

Hans Winkler, and David Christie. 2020. “Black Woodpecker (Dryocopus Martius),” March. doi:10.2173/bow.blawoo1.01.