Chimney swift towers

Chimney swift

John Kaufmann

1971

Vitt-vitt, l'hirondelle

Elisabeth Ivanovsky

1979

Chimney swifts and their relatives

Margaret Whittemore

1981

Chimney swifts

Paul D. Kyle

2005

1990 census of population and housing

United States. Bureau of the Census

1992

1980 census of housing

United States. Bureau of the Census

1983

Housing

United States. Bureau of the Census

1942

1980 census of housing

United States. Bureau of the Census. Housing Division

1982