BBS Route · Louisiana · BCR 25
Mer Rouge Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 96 species recorded across 34 survey years, no longer active.
96Species Recorded
34Years Surveyed
1967–2008Span
3Observers
Bird Species Found on Louisiana Mer Rouge
Top 40 of 96 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Red-winged Blackbird | Icteridae | 203 | 2008 | +63% | 1970 | |
| American Crow | Corvidae | 53 | 2008 | +361% | 1970 | |
| Northern Cardinal | Cardinalidae | 44 | 2008 | -15% | 1970 | |
| Mourning Dove | Columbidae | 38 | 2008 | -6% | 1970 | |
| Western Cattle-Egret | Ardeidae | 34 | 2008 | +21% | 1971 | |
| Cliff Swallow | Hirundinidae | 25 | 2008 | +46% | 2004 | |
| White-eyed Vireo | Vireonidae | 21 | 2008 | +250% | 1970 | |
| Common Grackle | Icteridae | 19 | 2008 | -86% | 1970 | |
| Carolina Chickadee | Paridae | 19 | 2008 | -6% | 1970 | |
| Indigo Bunting | Cardinalidae | 18 | 2008 | +203% | 1970 | |
| Dickcissel | Cardinalidae | 18 | 2008 | -6% | 1970 | |
| Yellow-breasted Chat | Icteriidae | 18 | 2008 | +77% | 1970 | |
| European Starling | Sturnidae | 17 | 2008 | -65% | 1970 | |
| Carolina Wren | Troglodytidae | 17 | 2008 | +460% | 1970 | |
| Northern Mockingbird | Mimidae | 13 | 2008 | -21% | 1970 | |
| Common Yellowthroat | Parulidae | 11 | 2008 | +47% | 1970 | |
| Bachman's Sparrow | Passerellidae | 11 | 2006 | +160% | 1972 | |
| Barn Swallow | Hirundinidae | 11 | 2008 | +121% | 1975 | |
| Eastern Meadowlark | Icteridae | 10 | 2008 | -86% | 1970 | |
| Eastern Bluebird | Turdidae | 10 | 2008 | +267% | 1995 | |
| Yellow-billed Cuckoo | Cuculidae | 9 | 2008 | -37% | 1970 | |
| Blue Jay | Corvidae | 9 | 2008 | -42% | 1970 | |
| Tufted Titmouse | Paridae | 9 | 2008 | -21% | 1970 | |
| Brown-headed Cowbird | Icteridae | 8 | 2008 | -45% | 1970 | |
| Summer Tanager | Cardinalidae | 8 | 2008 | +127% | 1970 | |
| Purple Martin | Hirundinidae | 6 | 2008 | +286% | 1970 | |
| Blue-gray Gnatcatcher | Polioptilidae | 6 | 2008 | +89% | 1971 | |
| Turkey Vulture | Cathartidae | 6 | 2008 | +0% | 1993 | |
| Killdeer | Charadriidae | 5 | 2008 | +233% | 1977 | |
| Great Crested Flycatcher | Tyrannidae | 5 | 2008 | -9% | 1970 | |
| Loggerhead Shrike | Laniidae | 5 | 2008 | +22% | 1972 | |
| Northern Rough-winged Swallow | Hirundinidae | 5 | 1984 | +400% | 1982 | |
| Northern Parula | Parulidae | 5 | 2008 | +100% | 1999 | |
| Yellow-crowned Night Heron | Ardeidae | 4 | 1985 | +83% | 1970 | |
| Red-bellied Woodpecker | Picidae | 4 | 2008 | -10% | 1970 | |
| Orchard Oriole | Icteridae | 4 | 2008 | -7% | 1970 | |
| Pine Warbler | Parulidae | 4 | 2008 | +18% | 1971 | |
| Mississippi Kite | Accipitridae | 4 | 2008 | +0% | 2005 | |
| Horned Lark | Alaudidae | 4 | 2007 | +240% | 1973 | |
| Rock Pigeon | Columbidae | 3 | 2003 | +214% | 1970 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.