Editing Prothonotary warbler (section)

== Behavior and ecology ==

The prothonotary warbler is the only eastern warbler that nests in natural or artificial cavities, sometimes using old [[downy woodpecker]] holes. The male often builds several incomplete, unused [[bird nest|nest]]s in his territory; the female builds the real nest and lays 3–7&nbsp;eggs.<ref name=":0">{{Cite web |last=Atwell |first=Leigh |title=Protonotaria citrea (prothonotary warbler) |url=https://animaldiversity.org/accounts/Protonotaria_citrea/ |access-date=2022-12-26 |website=Animal Diversity Web |language=en}}</ref>

The preferred [[foraging]] habitat is dense, woody streams, where the prothonotary warbler forages actively in low foliage, mainly for [[insect]]s and [[snail]]s.<ref name=":0" />

The song of this bird is a simple, loud, ringing ''sweet-sweet-sweet-sweet-sweet''. The call is a loud, dry chip, like that of a [[hooded warbler]]. Its flight call is a loud {{not a typo|''seeep''}}.<ref>{{cite book |title=National Geographic Complete Birds of North America |first=Jonathan |last=Alderfer |year=2006 |publisher=National Geographic Society}}</ref>