Editing Cliff swallow (section)

== Habitat and distribution ==
As their name suggests, throughout history the cliff swallows concentrated their nesting colonies along mountain cliffs, primarily by the western North American coast.<ref name=":2" /> Today, with the development of highways, concrete bridges, and buildings this [[Adaptation|adaptable]] bird species is rapidly adjusting its common nesting sites, with populations expanding further east and building their mud nests on these concrete [[infrastructure]]s.<ref name=":2" /><ref name=":1" /> Thus, the cliff swallow's breeding range includes large areas across [[Canada]] and the [[United States]], excluding some Southern and Northern areas.<ref name=":3" /><ref name=":11">{{Cite web |title=Cliff Swallow - eBird |url=https://ebird.org/species/cliswa |access-date=2023-01-13 |website=ebird.org |language=en}}</ref> The majority of nesting colonies are situated in close proximity to fields, [[pond]]s, and other [[ecosystem]]s that would hold a large variety of flying insect populations to sustain their energy requirements during the [[Seasonal breeder|breeding season]].<ref name=":2" /><ref name=":1" />
[[File:Petrochelidon_pyrrhonota_-California,_USA-20May2006.jpg|thumb|right|''Petrochelidon pyrrhonota'' – California, US]]
The cliff swallows' wintering grounds have been recorded as [[South America]]n countries, such as Southern [[Brazil]], [[Uruguay]], and parts of [[Argentina]].<ref name=":2" /><ref name=":7" /><ref name=":11" /> However, their behavior and populations have yet to be extensively studied on their wintering grounds leaving room for new information about this species.<ref name=":1" /> The cliff swallows are long-distance day-migrants that generally travel along the North American coastlines.<ref name=":7" /> The Eastern populations travel through [[Florida]], and the Western populations through Mexico and [[Central America]] down to their destinations.<ref name=":2" /><ref name=":7" /><ref name=":3" /> Flocks containing large numbers of cliff swallows have been recorded migrating together, but whether they stay together or disperse to different locations is unknown.<ref name=":1" />