Description
Title: The book of birds, common birds of town and country and American game birds
Year: 1918 (1910s)
Authors: National Geographic Society (U.S.) Henshaw, Henry W. (Henry Wetherbee), 1850-1930 Fuertes, Louis Agassiz, 1874-1927. illus Kennard, Frederic Hedge, 1865- Cooke, Wells Woodbridge, 1858-1916 Shiras, George, 1859-
Subjects: Birds
Text Appearing After Image: 68 MARSH HAWK (Circus hudsonius) Length, about 19 inches.
Date 1918
Source https://www.flickr.com/photos/internetarchivebookimages/14563530578/
Source book page: https://archive.org/stream/cu31924090257605/cu31924090257605#page/n81/mode/1up
Author Internet Archive Book Images
Source: https://commons.wikimedia.org/wiki/File:The_book_of_birds,_common_birds_of_town_and_country_and_American_game_birds_(1918)_(14563530578).jpg

Circus hudsonius = hen harrier (Circus cyaneus)
The hen harrier (Circus cyaneus) or northern harrier (in the Americas) is a bird of prey. The genus name Circus is derived from Ancient Greek kirkos, meaning 'circle', referring to a bird of prey named for its circling flight. The specific cyaneus is Latin, meaning "dark-blue".

The turkey vulture (Cathartes aura), also known in some North American regions as the turkey buzzard (or just buzzard), and in some areas of the Caribbean as the John crow or carrion crow, is the most widespread of the New World vultures.