Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41771
Incidence of ingested lead shot in sora rails
Gizzards of 934 sora rails (Porzana carolina) collected in Maryland (767) and Missouri (167) were examined for ingested shot. Ingested shot were found in 12.3 percent of the Maryland sample and 1.8 percent of the Missouri birds. Individual Maryland birds had ingested up to 28 pellets. None of the lead pellets examined was larger than a No. 7 1/2 shot. Maryland ingestion rates did not differ by a
Authors
J.W. Artmann, E.M. Martin
Final summary report for cooperating woodcock hunters, 1971, 1972, 1973
No abstract available.
Authors
R.A. Coon
The seventy-fifth Christmas bird count. 355. Little Creek, Va
No abstract available.
Authors
P. Sykes
The seventy-fifth Christmas bird count. 341. Back Bay National Wildlife Refuge, Va
No abstract available.
Authors
P. Sykes
The seventy-fifth Audubon Christmas bird count. North Carolina, South Carolina, Georgia, Florida
No abstract available.
Authors
P.W. Sykes
Twenty-eighth winter bird-population study. 12. Hickory-oak-ash floodplain forest
No abstract available.
Authors
C.S. Robbins
Weights and wing lengths of wild Sonoran masked bobwhites during fall and winter
No abstract available.
Authors
R. E. Tomlinson