Abundant summer resident
February - November
Abundant transient and summer resident, and local, rather rare, winter resident
June - February
Harbinger of spring; many over-winter
March - November
—H.L. Clark, 1887
Abundant and widespread. Because it is so familiar and occurs around places where humans live, it sometimes serves as an early warning of environmental problems, such as overuse of pesticides. (audubon.org)*