Increase in Barn Swallow nesting in the Phoenix, AZ area

Notes | By Thomas A. Gatz | Accepted January 07, 2021

Prior to 1987 there were no known or documented Barn Swallow (Hirundo rustica) nests or nesting attempts in Phoenix or elsewhere in Maricopa County.  During the ensuing 3 decades only a few nest locations of this species were discovered and documented in the county.  However, in the summer of 2020, birders reported Barn Swallows apparently nesting under road bridges over canals at several locations in the greater Phoenix area.