Roosting

• (p. pr. & vb. n.) of Roost
Found on http://thinkexist.com/dictionary/meaning/roosting/

roosting

(from the article `falconiform`) Toward evening a falconiform may return to a regular roosting place or may settle for the night wherever it finds itself. Vultures often return ... Bats choose a variety of diurnal roosts, although the roost requirements of many bats, which are rather precise in terms of light, temperature, and ... .....
Found on http://www.britannica.com/eb/a-z/r/66

Roosting

In simple terms another word for sleeping. Some birds roost discretely amongst vegetation or, particularly during cold weather, in nest boxes, while others form large communal roosts. Hundreds or even thousands of Pied Wagtails and Starlings will sometimes roost in town centres or reedbeds, forming an amazing spectacle. Nocturnal birds such as owls...
Found on https://www.birdfood.co.uk/glossary
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