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  • About Us
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    • Memorial Bench Program
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    • Gardens
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      • Vintage Base Ball
      • Playground
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      • Birding
      • Volunteer
    • Weddings and Special Events
    • Park Map
    • Directions
  • History
    • Overview
    • Civil War
    • 1896 Tornado
    • Structures
    • Monuments
    • Birds
    • Vintage Base Ball
    • Programs
  • Restoration
    • Current Projects
      • Fence and Gates
      • Grotto Bridge Rail
      • Revolutionary War Monument
      • Pathways
      • 1876 Bandstand
    • Completed Projects
    • Park Master Plan
HOMEBODIES

HOMEBODIES

Nov 12, 2020 | Posted by Kieran Lindsey | blog, wildlife |
BY KIERAN LINDSEY, PhD

Anywhere you hang your hat is home, or so the saying goes, but the same holds true even if your cap is actually a cluster of rose-colored feathers, or even a cloche of streaky tan and taupe.  Perhaps we rarely see a House Finch (Haemorhous mexicanus) wearing a hat because, once they settle on a spot to call their own, that bonnet on the wall be staying put!

In other words, this bird is as non-migratory as they come.

Don’t get me wrong… individual House Finches leave the nest, establish a home territory, and stick. It’s the time between waving goodbye to Mom and Dad and putting down roots that has had a major impact on the fortunes of this chipper clan… think of it as a gap year in which the youngsters have time for personal exploration.

Most of them don’t wander too far off but little by little, flight by flight, they’ve come to inhabit nearly all of Mexico and the U.S., with the exception of the northernmost borders of Washington State east to Michigan, and a swath of Middle America that runs south from the Dakotas to East Texas and western Louisiana.

The fact is, House Finches were an exclusively southwestern species until 1870, when a group was shipped off to Hawaii. Then in 1940, some folks of looking to make a quick buck decided to capture, ship, and sell these petite (5 to 5½ in or 13-14 cm from beak to tail-tip) and long-winded singers on the East Coast. New York City was all a-twitter about these “Hollywood Finches,” as the marketers tagged them, and that caught the attention of federal agents charged with enforcing the Migratory Bird Treaty Act of 1918. Hoping they could avoid prosecution if the evidence flew the coop, vendors and owners released the birds.

Cast out on the mean streets of NYC, the House Finches had the grit to survive in Gotham. They found one another, banded together, established a solid foothold, took a juicy bite of that Big Apple, and then went looking for new lands to conquer.

It only took about 40 years for these stalwart explorers to reach my hometown on the other side of the Mississippi River, and they haven’t stopped their westward expansion yet. Meanwhile, the Left Coast contingency began to head east.

House Finches are highly adaptable and resilient. They can be observed in diverse landscapes, including deserts, grasslands, savannah, riparian and wetland areas, deciduous and coniferous forests, plus they’re willing to live near humans in rural, suburban, and urban settings. Family members on both sides of the continent employ the same strategy for acquiring new acreage — stake a claim and hold it, build and feather a nest, raise up some kids, launch, repeat.

The strategy that keeps this metaphorical Conestoga wagon moving west (and east), ensuring the pioneers’ success, is community support. While House Finches are willing and able to displace other species, including the purple finch (Haemorhous purpureus) and the house sparrow (Passer domesticus), they’re not territorial with their own kind, even during the breeding season, when other species jealously guard space, mates, and food. Rather, they’re gregariously social, at times forming flocks of over a hundred individuals.

Hey, whatever works — House Finches now occupying a substantially larger share of the map now than they did 80 years ago. Moreover, despite a steep decline in numbers during the mid-1990s, due to a respiratory and ophthalmic disease called mycoplasmal conjunctivitis (which is passed between birds at contaminated feeders), scientists currently estimate the breeding population at over 40 million.

It takes a village, or so we’re told, but that’s a metropolis!


© 2020 Next-Door Nature—no reprints without written permission from the author (I’d love for you to share my work  but please ask). Thanks to these photographers for making their work available through a Creative Commons license (CCL): Michele Dorsey Walfred, MrTinDC, Emilie Chen, Miwok, and Dolan.
Tags: avianbackyard wildlifebird behaviorbirdsfinchfinchesFringillidaeHaemorhous mexicanusHaemorhous purpureusintroduced speciesnative speciesnatural historyNaturePasseridaePasseriformessuburban wildlifeurban wildlifevertebrateswatchable wildlifewild birdswildlifewildlife watching
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About Kieran Lindsey

Kieran J. Lindsey, PhD, is an urban wildlife biologist, writer, and personal assistant to her wire-fox terrier, Dash. Kieran is co-author of Urban Wildlife Management, the first textbook on the subject. Additional wildlife career experiences include: Executive Director of the TWRC wildlife rehabilitation and education center (1997-1999, Houston, TX); former columnist for the Houston Chronicle newspaper (The Urban Jungle, 1998-2001); producer, writer, and host of Wild Things Radio!on KUNM-FM (1999-2001, Albuquerque, NM); Emmy® award-winning documentary producer. Currently, Kieran is Director of Virginia Tech's Online Master of Natural Resources program, Managing Editor of the peer-reviewed Journal of Wildlife Rehabilitation, and blogger at nextdoornature.org. She lives and works in Lafayette Square (because the Internet is amazing).

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