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 Statussort descending Priority Counties IBA Criteria
Fairmount Park and Benjamin Rush State Park Recognized State Philadelphia D3, D4vii, D5
Laurels, King Ranch and Stroud Recognized State Chester D1, D3
Red Clay Creek Valley Recognized State Chester
Tuscarora Ridge, The Pulpit Recognized State
Allegheny Front Recognized State Bedford, Blair, Cambria, Centre, Clearfield, Somerset D1, D3, D4vi, D5
Kinzua Recognized State McKean, Warren
Susquehanna Headwaters Forest Block Recognized Continental B3, D3
Jumbo Woods Forest Block Recognized Continental Crawford, Erie B3, D3
Green County Forest Block Recognized State D3
Oley Hills Forest Block Recognized State D3
Conewago Mountains Forest Block Recognized Continental B3, D3
Loyalsock/North Mountain Forest Block Recognized Continental B3
Upper Allegheny Forest Block Recognized Continental Clarion, Crawford, Elk, Erie, Forest, Jefferson, McKean, Venango, Warren B3
Chestnut Ridge Forest Block Recognized State Westmoreland D3
Shade Mountain Forest Block Recognized State Juniata, Mifflin, Snyder D3
Thick Mountain Forest Block Recognized State Centre, Mifflin, Snyder, Union D3
Green Pond Marsh Recognized State Northampton D3, D4ii, D4v