Important Bird Areas


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Pennsylvania IBAs by Type

IBA Priority Number Acres
Global 6 22,219
Continental 7 47,582
State 73 1,386,666
Total 86 1,456,467

Formed in 1996, Pennsylvania developed the first statewide Important Bird Area (IBA) program in the country. A group of scientific advisors (known as the Ornithological Technical Committee) has identified over 80 IBA sites encompassing over two million acres of Pennsylvania's public and private land. These areas include migratory staging areas, winter roost sites and prime breeding areas for songbirds, wading birds, and other species. Pennsylvania is making an important contribution to the conservation of bird habitat in the western hemisphere. Penn's Woods are critical to many interior forest birds, providing nesting habitat to 17% of the world's Scarlet Tanagers and 9% of the Wood Thrushes. By focusing attention on the most essential and vulnerable areas, the IBA program helps to promote proactive habitat conservation, benefiting birds and biodiversity. Audubon Pennsylvania works with a multitude of partners across the Commonwealth to advance the conservation of Important Bird Areas. For more information on the individual sites, please use the map to the right to navigate to your desired location. See Feature News - and submit your bird observations - on {link:Pennsylvania eBird|} {link:Frequently Asked Questions about the IBA Program|}

Site Name Status Prioritysort descending Counties IBA Criteria
Green Lane Reservoir Recognized State Montgomery D4i, D4ii, D4v
Glen Morgan Lake Recognized State Berks D3, D4ii, D4iii
Great Marsh Recognized State Chester D3
Upper Ridley/Crum Recognized State Delaware D3, D4ii, D4iii
Octoraro Reservoir Recognized State Chester, Lancaster D3, D4i, D4ii, D4v
State Line Barrens Recognized State Chester, Lancaster D3, D4i, D4vi
Conejohela Flats Recognized State Lancaster D3, D4ii, D4v
Creek Road Area Recognized State Lancaster D3, D4i, D4iii
Roderick Wildlife Preserve - SGL 314 Recognized State Erie D3
Pymatuning, Hartstown Complex Recognized State Crawford D3, D4ii, D4v
Cussewago Bottom Recognized State Crawford, Erie D3
Hemlock Hill Research Area Recognized State Crawford D5
Erie National Wildlife Refuge Recognized State Crawford D3, D4ii, D4v
Conneaut Marsh - Geneva Marsh Recognized State Crawford D3, D4ii, D4v
Barrows Heronry & Edward Brucker Sanctuary Recognized State Mercer D4iii
Shenango Reservoir Recognized State Crawford D4ii, D4v
Pennsy, Black, & Celery Swamps - State Game Lands 151 & 284 Recognized State Lawrence, Mercer D3
The Glades - SGL 95 Recognized State Butler D3
Moraine State Park & Jennings EEC Recognized State Butler D4ii
Raccoon Creek Valley & State Park Recognized State Allegheny, Beaver, Washington D3