Editing Bird nest (section)

== Ecological importance ==
[[File:Bird-nest (2).jpg|thumb|alt=Two bird nest close to each other|Two expired bird nest.]]
In constructing nests, birds act as [[ecosystem engineer]]s by providing a sheltered microclimate and concentrated food sources for invertebrates.<ref>{{Cite journal|last1=Boyes|first1=Douglas H.|last2=Lewis|first2=Owen T.|date=2018-08-27|title=Ecology of Lepidoptera associated with bird nests in mid-Wales, UK|journal=Ecological Entomology|volume=44|issue=1|pages=1–10|doi=10.1111/een.12669|s2cid=91557693|issn=0307-6946|doi-access=free}}</ref> A global checklist lists eighteen invertebrate orders that occur in bird nests.<ref>{{Cite journal|last1=Berner|first1=Lewis|last2=Hicks|first2=Ellis A.|date=June 1959|title=Checklist and Bibliography on the Occurrence of Insects in Birds Nests|url=http://dx.doi.org/10.2307/3492142|journal=The Florida Entomologist|volume=42|issue=2|pages=92|doi=10.2307/3492142|jstor=3492142|issn=0015-4040}}</ref>