Description Young Nightjar
Title: The birds of the British Isles and their eggs
Year: 1919 (1910s)
Authors: Coward, T. A. (Thomas Alfred), 1867-1933
Subjects: Birds -- Great Britain Birds -- Eggs Great Britain
Date 1919
Source https://www.flickr.com/photos/internetarchivebookimages/14569092970/
Source book page: https://archive.org/stream/birdsofbritishis00cowa/birdsofbritishis00cowa#page/n409/mode/1up
Author Internet Archive Book Images
Source: https://commons.wikimedia.org/wiki/File:The_birds_of_the_British_Isles_and_their_eggs_(1919)_(14569092970).jpg

The European nightjar, Eurasian nightjar or just nightjar (Caprimulgus europaeus) is a crepuscular and nocturnal bird in the nightjar family that breeds across most of Europe and temperate Asia. The Latin generic name refers to the old myth that the nocturnal nightjar suckled goats, causing them to cease to give milk.