BBS Route · Texas · BCR 36
San Ygnacio Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 80 species recorded across 12 survey years, no longer active.
80Species Recorded
12Years Surveyed
1967–1985Span
3Observers
Bird Species Found on Texas San Ygnacio
Top 40 of 80 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Northern Mockingbird | Mimidae | 84 | 1985 | -24% | 1970 | |
| Mourning Dove | Columbidae | 54 | 1985 | +2% | 1970 | |
| Northern Bobwhite | Odontophoridae | 50 | 1985 | +1% | 1970 | |
| Barn Swallow | Hirundinidae | 49 | 1985 | +98% | 1979 | |
| Great-tailed Grackle | Icteridae | 48 | 1985 | -16% | 1970 | |
| Pyrrhuloxia | Cardinalidae | 44 | 1985 | -76% | 1970 | |
| Cactus Wren | Troglodytidae | 33 | 1985 | +123% | 1970 | |
| Golden-fronted Woodpecker | Picidae | 26 | 1985 | -72% | 1970 | |
| Painted Bunting | Cardinalidae | 25 | 1985 | -36% | 1970 | |
| White-winged Dove | Columbidae | 20 | 1985 | +105% | 1970 | |
| Scissor-tailed Flycatcher | Tyrannidae | 17 | 1985 | -23% | 1970 | |
| House Sparrow | Passeridae | 16 | 1985 | +14% | 1970 | |
| Neotropic Cormorant | Phalacrocoracidae | 15 | 1982 | -23% | 1978 | |
| Black-throated Sparrow | Passerellidae | 13 | 1985 | -91% | 1970 | |
| Cliff Swallow | Hirundinidae | 13 | 1985 | +430% | 1970 | |
| Common Ground Dove | Columbidae | 12 | 1985 | +8% | 1970 | |
| Snowy Egret | Ardeidae | 12 | 1982 | +100% | 1980 | |
| Northern Cardinal | Cardinalidae | 10 | 1985 | -85% | 1970 | |
| Bronzed Cowbird | Icteridae | 9 | 1985 | -20% | 1970 | |
| Verdin | Remizidae | 7 | 1982 | -70% | 1970 | |
| Turkey Vulture | Cathartidae | 6 | 1985 | -72% | 1970 | |
| Black-crested Titmouse | Paridae | 6 | 1985 | +20% | 1971 | |
| Laughing Gull | Laridae | 6 | 1981 | n/a | n/a | |
| Ladder-backed Woodpecker | Picidae | 5 | 1985 | -45% | 1970 | |
| Olive Sparrow | Passerellidae | 5 | 1982 | +57% | 1979 | |
| Cave Swallow | Hirundinidae | 5 | 1982 | +400% | 1980 | |
| Lesser Nighthawk | Caprimulgidae | 4 | 1985 | -59% | 1970 | |
| Bewick's Wren | Troglodytidae | 4 | 1985 | -80% | 1970 | |
| Rock Pigeon | Columbidae | 4 | 1980 | +33% | 1970 | |
| Inca Dove | Columbidae | 4 | 1982 | +100% | 1971 | |
| Black-bellied Whistling-Duck | Anatidae | 4 | 1982 | +300% | 1981 | |
| Killdeer | Charadriidae | 3 | 1982 | -70% | 1970 | |
| Harris's Hawk | Accipitridae | 3 | 1985 | -18% | 1970 | |
| Eastern Screech-Owl | Strigidae | 3 | 1967 | n/a | n/a | |
| Greater Roadrunner | Cuculidae | 3 | 1985 | -70% | 1971 | |
| Yellow-billed Cuckoo | Cuculidae | 3 | 1985 | -8% | 1970 | |
| Brown-crested Flycatcher | Tyrannidae | 3 | 1985 | -82% | 1970 | |
| Chihuahuan Raven | Corvidae | 3 | 1985 | +44% | 1971 | |
| Brown-headed Cowbird | Icteridae | 3 | 1985 | -51% | 1970 | |
| Audubon's Oriole | Icteridae | 3 | 1972 | +200% | 1967 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.