BBS Route · Texas · BCR 35
Girvin Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 66 species recorded across 27 survey years, still active.
66Species Recorded
27Years Surveyed
1975–2024Span
9Observers
Bird Species Found on Texas Girvin
Top 40 of 66 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Cassin's Sparrow | Passerellidae | 58 | 2017 | +51% | 1977 | |
| House Sparrow | Passeridae | 38 | 2024 | +46% | 1978 | |
| Black-throated Sparrow | Passerellidae | 36 | 2024 | 11× | 1977 | |
| Pyrrhuloxia | Cardinalidae | 31 | 2024 | +134% | 1977 | |
| Ash-throated Flycatcher | Tyrannidae | 30 | 2024 | +655% | 1977 | |
| Northern Cardinal | Cardinalidae | 28 | 2024 | n/a | n/a | |
| Northern Mockingbird | Mimidae | 27 | 2024 | -7% | 1977 | |
| Scaled Quail | Odontophoridae | 18 | 2024 | +31% | 1977 | |
| Mourning Dove | Columbidae | 18 | 2024 | -23% | 1977 | |
| Lesser Nighthawk | Caprimulgidae | 18 | 2017 | +133% | 1986 | |
| Bullock's Oriole | Icteridae | 15 | 2024 | +115% | 1977 | |
| House Finch | Fringillidae | 14 | 2024 | +283% | 1978 | |
| Western Kingbird | Tyrannidae | 13 | 2024 | +973% | 1977 | |
| Painted Bunting | Cardinalidae | 11 | 2024 | +350% | 1980 | |
| Cave Swallow | Hirundinidae | 11 | 2017 | -83% | 1998 | |
| Barn Swallow | Hirundinidae | 10 | 2017 | -22% | 1994 | |
| Eurasian Collared-Dove | Columbidae | 10 | 2024 | +277% | 2006 | |
| Bewick's Wren | Troglodytidae | 9 | 2017 | -52% | 1994 | |
| Curve-billed Thrasher | Mimidae | 8 | 2024 | +164% | 1995 | |
| Greater Roadrunner | Cuculidae | 7 | 2017 | +217% | 1979 | |
| Common Nighthawk | Caprimulgidae | 7 | 2024 | +6% | 1977 | |
| Lark Sparrow | Passerellidae | 7 | 2017 | -61% | 1977 | |
| Swainson's Hawk | Accipitridae | 6 | 2017 | +267% | 1977 | |
| Ladder-backed Woodpecker | Picidae | 6 | 2024 | +63% | 1977 | |
| Scissor-tailed Flycatcher | Tyrannidae | 6 | 2024 | +50% | 1977 | |
| Chihuahuan Meadowlark | Icteridae | 5 | 2002 | +64% | 1994 | |
| Rock Pigeon | Columbidae | 5 | 2009 | +160% | 1996 | |
| Northern Bobwhite | Odontophoridae | 4 | 2017 | +160% | 1980 | |
| Horned Lark | Alaudidae | 4 | 2015 | -30% | 1979 | |
| White-winged Dove | Columbidae | 4 | 2024 | +750% | 2003 | |
| Turkey Vulture | Cathartidae | 3 | 2024 | +167% | 1977 | |
| Orchard Oriole | Icteridae | 3 | 2024 | +117% | 1979 | |
| Bronzed Cowbird | Icteridae | 3 | 2017 | +133% | 2003 | |
| Red-winged Blackbird | Icteridae | 3 | 2017 | -75% | 1995 | |
| Harris's Hawk | Accipitridae | 2 | 2009 | -55% | 1977 | |
| Great Horned Owl | Strigidae | 2 | 2011 | +133% | 1978 | |
| Common Poorwill | Caprimulgidae | 2 | 2024 | +33% | 1993 | |
| Burrowing Owl | Strigidae | 2 | 2024 | +80% | 1998 | |
| Purple Martin | Hirundinidae | 2 | 1979 | n/a | n/a | |
| Yellow-billed Cuckoo | Cuculidae | 2 | 2015 | +50% | 2001 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.