Nonnatives - House Finch

House Finch - Carpodacus mexicanus


Florida's Nonnative Wildlife. Species detail.

First year:

Extirpated year:

Established status: Populations are confirmed breeding and apparently self-sustaining for 10 or more consecutive years.

Estimated Florida range: 46 counties  At least 10 years, 1 county  Less than 10 years, 5 counties  Not reported breeding

Statewide trend: Expanding

Threats to natives: Could out compete other native finches like the goldfinch at feeders. Also more importantly House Finches are increasingly becoming infected with conjunctivitis, Mycoplasma gallisepticum, which has caused a decline in population numbers in many areas. The disease it most likely spread at bird feeders and has been known to infect goldfinch, blue jay, and could even infect domestic poultry.

Species Account: Native to western North America. It has naturally spread eastward, and birds were also released in eastern United States, notably in New York in 1940. It occurs locally across the Panhandle and is expanding southwards. This species is considered an agricultural pest in parts of its native range and should be considered a potential pest in Florida. It has been reported in every region of the state and in 31 counties (Pranty 2001 unpublished data).

Habitats: Central or core urban area, Low density suburban development, areas peripheral to core urban areas, and small towns.

County First Year Extirpated Year Breeding status Notes
Northwest     At least 10 years  
North Central     At least 10 years  
Northeast     At least 10 years  
Broward 1999   Less than 10 years Pranty 2000d
Lee 1980   Not reported breeding Probably breeding from BBA (1986-1991)
Palm Beach 1986?   Not reported breeding Probably breeding from BBA (1986-1991)
Pinellas 1998   Not reported breeding Male and female, Pranty 1999c
Polk 1999   Not reported breeding Pranty 1999b
Sarasota 1999   Not reported breeding Pranty 1999b


Hill, G. E. 1993. House Finch (Carpodacus mexicanus)

James, F. C. 1997. Nonindigenous Birds. Pages 139-156 In Strangers Among Us: Impact and management of nonindigenous species in Florida. (Simberloff,D., D. Schmitz, and E. Wilson, eds.) Island Press, Washington D.C.

Pranty, B. 1994b. Field observations [spring report: March-May 1994]. Florida Field Naturalist 22:118-126.

Pranty, B. 1994c. Field observations [summer report: June to July 1994]. Florida Field Naturalist 23:19-24.

Pranty, B. 1995a. Field observations [fall report: August-November 1994]. Florida Field Naturalist 23:44-56.

Pranty, B. 1995b. Field observations [spring report: March to May 1995]. Florida Field Naturalist 23:99-108.

Pranty, B. 1996a . Field observations [winter report: December 1995- February 1996]. Florida Field Naturalist 24:83-92.

Pranty, B. 1996b. A birder's guide to Florida. American Birding Association, Inc., Colorado Springs, Colorado, USA.

Pranty, B. 1997a. Field observations [spring report: March to May 1997]. Florida Field Naturalist 25:148-158.

Pranty, B. 1997b. Field observations [fall report: August to November 1997]. Florida Field Naturalist 25:74-84.

Pranty, B. 1998a. Field observations [spring report: March to May 1998]. Florida Field Naturalist 26:128-137.

Pranty, B. 1998b. Field observations [summer report: June-July 1998]. Florida Field Naturalist 26:26-32.

Pranty, B. 1998c. Field observations [winter report: December 1997- February 1998]. Florida Field Naturalist 26:100-108.

Pranty, B. 1998d. Field observations [spring report: March-May 1998]. Florida Field Naturalist 25:128-137.

Pranty, B. 1999b. Field observations [spring report: March to May 1999]. Florida Field Naturalist 27:182-193.

Pranty, B. 2000a. Field observations [winter report: December 1999 to February 2000]. Florida Field Naturalist 28:127-137.

Pranty, B. 2000d. Field observations [SUMMER REPORT: JUNE-JULY 1999} Florida Field Naturalist 28(1):33-40, 2000.

Pranty, B. 2001a. Field observations [summer report: June-July 2000]. Florida Field Naturalist 29:33-40.

Pranty, B. 2001c. Field observations [fall report: August-November 2000]. Florida Field Naturalist 29:61-73.

Robertson, W. B., and G. E. Woolfenden. 1992. Florida bird species: an annotated list. Florida Ornithological Society, Gainesville, Florida, USA.

Stevenson, H. M., and B. H. Anderson. 1994. The birdlife of Florida. University Press of Florida, Gainesville, Florida, USA.

Links to more information

UF/IFAS Extension Fact Sheet

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The number of Florida residents who participate in wildlife viewing around their homes (3.3 million) would rank them as the 22nd largest state in the nation.

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