| | Accession Number | 5004190 |
| | Title | 50-year changes in breeding bird populations (robbin05) |
| | Project Description | In the summers of 1949-1951, Chandler S. Robbins and Robert E. Stewart, Sr. conducted |
| | breeding bird censuses of representative habitats in Garrett County, Maryland, including virgin |
| | hemlock forest, scrub spruce bog, open hemlock-spruce bog, and lightly grazed pasture. The |
| | results were published in Audubon Field Notes, vols. 3 and 5 (1949, 1951), and used in Stewart |
| | and Robbins Birds of Maryland and the District of Columbia (North American Fauna No. 62, 1958). |
| | Several of these study sites are in Maryland State Forests, State Parks, and State Recreation |
| | Areas, or owned by The Nature Conservancy. These sites will be revisited 50 years after the |
| | original visit, the boundaries of each will be documented by GPS readings, the vegetation will be |
| | sampled by the same procedures as 50 years ago, and breeding bird populations mapped using |
| | the same procedures as 50 years ago. Recommendations will be made for future management of |
| | these habitats, some of which are very limited in extent in Maryland. These Garrett County sites |
| | are of special interest because of the limited extent of those habitats in Maryland and the high |
| | breeding densities of some species that are otherwise among Marylands rarest nesting birds |
| | (such as Blackburnian, Nashville, and Mourning Warblers, each one of which requires a different |
| | habitat). |
| | Keywords | 50-year, bobolink, breeding birds, brown creeper, canada warbler, garrett co md, golden-crowned |
| | kinglet, habitat change, mourning warbler, northern waterthrush, population change, red-breasted |
| | nuthatch, savannah sparrow, winter wren, |
| | Principal | Chandler S Robbins, USGS Patuxent Wildlife Research Center: chan_robbins@usgs.gov; Barbara |
| | Investigators | A Dowell, USGS Patuxent Wildlife Research Center: barbara_dowell@usgs.gov; |
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