BBS Route · Texas · BCR 21
Olney Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 106 species recorded across 48 survey years, still active.
106Species Recorded
48Years Surveyed
1969–2024Span
5Observers
Bird Species Found on Texas Olney
Top 40 of 106 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Cliff Swallow | Hirundinidae | 960 | 2024 | +128% | 1972 | |
| Mourning Dove | Columbidae | 65 | 2024 | -51% | 1972 | |
| Painted Bunting | Cardinalidae | 63 | 2024 | +833% | 1973 | |
| Northern Cardinal | Cardinalidae | 49 | 2024 | +196% | 1972 | |
| Lark Sparrow | Passerellidae | 38 | 2024 | -17% | 1972 | |
| Scissor-tailed Flycatcher | Tyrannidae | 34 | 2024 | -44% | 1972 | |
| Dickcissel | Cardinalidae | 28 | 2024 | +17% | 1972 | |
| Northern Bobwhite | Odontophoridae | 16 | 2024 | -87% | 1972 | |
| Common Grackle | Icteridae | 16 | 2024 | -67% | 1972 | |
| Western Cattle-Egret | Ardeidae | 16 | 2024 | +10% | 1997 | |
| American Crow | Corvidae | 15 | 2024 | +59% | 1972 | |
| Brown-headed Cowbird | Icteridae | 13 | 2024 | -52% | 1972 | |
| Eastern Bluebird | Turdidae | 13 | 2024 | +33% | 1972 | |
| Northern Mockingbird | Mimidae | 12 | 2024 | -77% | 1972 | |
| Ladder-backed Woodpecker | Picidae | 12 | 2024 | +250% | 1976 | |
| Eurasian Collared-Dove | Columbidae | 12 | 2024 | +83% | 2009 | |
| Bewick's Wren | Troglodytidae | 11 | 2024 | +580% | 1973 | |
| Black-crested Titmouse | Paridae | 11 | 2024 | +471% | 1974 | |
| Yellow-billed Cuckoo | Cuculidae | 10 | 2024 | -17% | 1972 | |
| Killdeer | Charadriidae | 9 | 2024 | -39% | 1972 | |
| Red-winged Blackbird | Icteridae | 8 | 2024 | -81% | 1972 | |
| Common Nighthawk | Caprimulgidae | 7 | 2024 | -83% | 1972 | |
| Eastern Phoebe | Tyrannidae | 7 | 2024 | +200% | 1972 | |
| Grasshopper Sparrow | Passerellidae | 7 | 2024 | +88% | 1982 | |
| House Sparrow | Passeridae | 7 | 2024 | -74% | 1972 | |
| Ash-throated Flycatcher | Tyrannidae | 7 | 2024 | +375% | 1976 | |
| Black Vulture | Cathartidae | 7 | 2024 | +633% | 2005 | |
| Carolina Chickadee | Paridae | 6 | 2024 | +300% | 1974 | |
| Red-bellied Woodpecker | Picidae | 6 | 2024 | +180% | 1984 | |
| Great Crested Flycatcher | Tyrannidae | 5 | 2024 | -7% | 1973 | |
| Cassin's Sparrow | Passerellidae | 5 | 2024 | -24% | 1987 | |
| Eastern Kingbird | Tyrannidae | 5 | 2021 | +200% | 1986 | |
| White-eyed Vireo | Vireonidae | 5 | 2024 | +100% | 2018 | |
| Eastern Meadowlark | Icteridae | 4 | 2024 | -98% | 1972 | |
| Great-tailed Grackle | Icteridae | 4 | 2024 | +145% | 1973 | |
| Mississippi Kite | Accipitridae | 4 | 2024 | +140% | 1982 | |
| Golden-fronted Woodpecker | Picidae | 4 | 2018 | +200% | 1974 | |
| Wild Turkey | Phasianidae | 4 | 2018 | +450% | 1987 | |
| Northern Rough-winged Swallow | Hirundinidae | 3 | 1997 | -69% | 1981 | |
| Chimney Swift | Apodidae | 3 | 2024 | -42% | 1974 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.