| County | City | Approximate
Arrival Date | Approximate Departure Date | Common Name | Scientific Name |
|---|---|---|---|---|---|
| Allegheny | McKeesport | April 23 | Cerulean Warbler | Dendroica cerulea | |
| May 20 | Palm Warbler | Dendroica palmarum | |||
| April 27 | Tennessee Warbler | Vermivora peregrina | |||
| Pittsburgh | April 25 | American Redstart | Setophaga ruticilla | ||
| May 10 | Cape May Warbler | Dendroica tigrina | |||
| February 29 | Fox Sparrow | Passerella iliaca | |||
| April 22 | Magnolia Warbler | Dendroica magnolia | |||
| Sewickley | March 19 | Chipping Sparrow | Spizella passerina | ||
| May 4 | Lark Sparrow | Chondestes grammacus | |||
| March 30 | Louisiana Waterthrush | Seiurus motacilla | |||
| Wilkinsburg | February 26 | Vesper Sparrow | Pooecetes gramineus | ||
| June 5 | White-crowned Sparrow | Zonotrichia leucophrys | |||
| Beaver | Beaver | April 29 | American Redstart | Setophaga ruticilla | |
| April 29 | Bachman's Sparrow | Aimophila aestivalis | |||
| April 22 | Black-and-white Warbler | Mniotilta varia | |||
| April 30 | May 27 | Black-throated Green Warbler | Dendroica virens | ||
| May 4 | Blackburnian Warbler | Dendroica fusca | |||
| May 3 | Blue-winged Warbler | Vermivora pinus | |||
| May 5 | Canada Warbler | Wilsonia canadensis | |||
| May 1 | Cerulean Warbler | Dendroica cerulea | |||
| May 2 | Chestnut-sided Warbler | Dendroica pensylvanica | |||
| March 19 | Chipping Sparrow | Spizella passerina | |||
| May 4 | Common Yellowthroat | Geothlypis trichas | |||
| May 10 | Dark-eyed Junco | Junco hyemalis | |||
| March 12 | Field Sparrow | Spizella pusilla | |||
| April 30 | Golden-winged Warbler | Vermivora chrysoptera | |||
| May 1 | Kentucky Warbler | Oporornis formosus | |||
| May 6 | Lincoln's Sparrow | Melospiza lincolnii | |||
| May 5 | Magnolia Warbler | Dendroica magnolia | |||
| May 11 | Mourning Warbler | Oporornis philadelphia | |||
| May 1 | Nashville Warbler | Vermivora rubricapilla | |||
| April 30 | Northern Parula | Parula americana | |||
| April 28 | Ovenbird | Seiurus aurocapillus | |||
| May 9 | Tennessee Warbler | Vermivora peregrina | |||
| May 7 | White-crowned Sparrow | Zonotrichia leucophrys | |||
| April 10 | White-throated Sparrow | Zonotrichia albicollis | |||
| May 15 | Wilson's Warbler | Wilsonia pusilla | |||
| May 4 | Worm-eating Warbler | Helmitheros vermivorus | |||
| April 23 | Yellow Warbler | Dendroica petechia | |||
| May 2 | Yellow-breasted Chat | Icteria virens | |||
| Blair | Altoona | May 20 | Swamp Sparrow | Melospiza georgiana | |
| Bucks | Doylestown | May 26 | Cape May Warbler | Dendroica tigrina | |
| Langhorne | February 14 | Red-winged Blackbird | Agelaius phoeniceus | ||
| Butler | Jefferson City | May 4 | Blackpoll Warbler | Dendroica striata | |
| May 20 | Nashville Warbler | Vermivora ruficapilla | |||
| Centre | State College | May 22 | American Tree Sparrow | Spizella arborea | |
| May 15 | Dark-eyed Junco | Junco hyemalis | |||
| March 15 | Field Sparrow | Spizella pusilla | |||
| March 25 | April 15 | Fox Sparrow | Passerella iliaca | ||
| April 3 | Grasshopper Sparrow | Ammodramus savannarum | |||
| April 20 | Henslow's Sparrow | Ammodramus henslowii | |||
| March 22 | April 4 | Lapland Longspur | Calcarius lapponicus | ||
| May 7 | Lincoln's Sparrow | Melospiza lincolnii | |||
| April 26 | Northern Waterthrush | Seiurus noveboracensis | |||
| May 6 | Salt Marsh Sharp-tailed Sparrow | Ammodramus caudacutus | |||
| March 17 | Savannah Sparrow | Passerculus sandwichensis | |||
| March 19 | March 24 | Snow Bunting | Plectrophenax nivalis | ||
| April 15 | Swamp Sparrow | Melospiza georgiana | |||
| May 25 | White-crowned Sparrow | Zonotrichia leucophrys | |||
| April 24 | White-throated Sparrow | Zonotrichia albicollis | |||
| Chester | Berwyn | April 23 | American Redstart | Setophaga ruticilla | |
| May 15 | American Redstart | Setophaga ruticilla | |||
| June 3 | Black-throated Blue Warbler | Dendroica caerulescens | |||
| May 7 | Blue-winged Warbler | Vermivora pinus | |||
| April 23 | Chestnut-sided Warbler | Dendroica pensylvanica | |||
| May 7 | Kentucky Warbler | Oporornis formosus | |||
| May 5 | Mourning Warbler | Oporornis philadelphia | |||
| May 1 | Ovenbird | Seiurus aurocapillus | |||
| May 9 | Yellow-breasted Chat | Icteria virens | |||
| May 9 | Yellow-breasted Chat | Icteria virens | |||
| Kennett Square | April 15 | Common Yellowthroat | Geothlypis trichas | ||
| Clinton | Renovo | May 4 | American Redstart | Setophaga ruticilla | |
| May 2 | American Redstart | Setophaga ruticilla | |||
| May 13 | Bay-breasted Warbler | Dendroica castanea | |||
| April 28 | Black-and-white Warbler | Mniotilta varia | |||
| May 3 | Black-throated Blue Warbler | Dendroica caerulescens | |||
| April 26 | Black-throated Green Warbler | Dendroica virens | |||
| April 27 | Blackburnian Warbler | Dendroica fusca | |||
| May 8 | Canada Warbler | Wilsonia canadensis | |||
| May 3 | Chestnut-sided Warbler | Dendroica pensylvanica | |||
| May 4 | Common Yellowthroat | Geothlypis trichas | |||
| May 16 | Fox Sparrow | Passerella iliaca | |||
| May 13 | Hooded Warbler | Wilsonia citrina | |||
| April 23 | Louisiana Waterthrush | Seiurus motacilla | |||
| May 7 | Magnolia Warbler | Dendroica magnolia | |||
| May 11 | Mourning Warbler | Oporornis philadelphia | |||
| May 5 | Northern Parula | Parula americana | |||
| May 6 | Northern Waterthrush | Seiurus noveboracensis | |||
| May 2 | Ovenbird | Seiurus aurocapillus | |||
| April 18 | Pine Warbler | Dendroica pinus | |||
| April 22 | White-crowned Sparrow | Zonotrichia leucophrys | |||
| April 22 | White-throated Sparrow | Zonotrichia albicollis | |||
| May 1 | Wilson's Warbler | Wilsonia pusilla | |||
| April 30 | Yellow Warbler | Dendroica petechia | |||
| May 8 | Yellow-breasted Chat | Icteria virens | |||
| April 30 | Yellow-rumped Warbler | Dendroica coronata | |||
| Crawford | Hartstown | May 29 | White-throated Sparrow | Zonotrichia albicollis | |
| Linesville | May 2 | Lark Sparrow | Chondestes grammacus | ||
| Meadville | March 23 | Swamp Sparrow | Melospiza georgiana | ||
| April 23 | White-crowned Sparrow | Zonotrichia leucophrys | |||
| Venango | May 24 | Lincoln's Sparrow | Melospiza lincolnii | ||
| April 9 | Snow Bunting | Plectrophenax nivalis | |||
| Cumberland | Carlisle | April 30 | Cape May Warbler | Dendroica tigrina | |
| April 3 | Common Yellowthroat | Geothlypis trichas | |||
| May 3 | Mourning Warbler | Oporornis philadelphia | |||
| April 25 | Northern Parula | Parula americana | |||
| Dauphin | Harrisburg | April 21 | Orange-crowned Warbler | Vermivora celata | |
| April 12 | Ovenbird | Seiurus aurocapillus | |||
| March 16 | Palm Warbler | Dendroica palmarum | |||
| Delaware | Clifton Heights | May 12 | Blue-winged Warbler | Vermivora pinus | |
| Haverford | June 10 | Blackpoll Warbler | Dendroica striata | ||
| Swarthmore | April 25 | Black-throated Blue Warbler | Dendroica caerulescens | ||
| April 28 | Kentucky Warbler | Oporornis formosus | |||
| March 15 | Pine Warbler | Dendroica pinus | |||
| Wayne | April 4 | Yellow Warbler | Dendroica petechia | ||
| Erie | Erie | April 19 | Black-throated Green Warbler | Dendroica virens | |
| March 25 | Lapland Longspur | Calcarius lapponicus | |||
| Franklin | Chambersburg | April 23 | Hooded Warbler | Wilsonia citrina | |
| Fulton | Crystal Spring | May 18 | Connecticut Warbler | Oporornis agilis | |
| Greene | Waynesburg | April 15 | Bachman's Sparrow | Aimophila aestivalis | |
| April 30 | Golden-winged Warbler | Vermivora chrysoptera | |||
| May 1 | Kentucky Warbler | Oporornis formosus | |||
| April 13 | Louisiana Waterthrush | Seiurus motacilla | |||
| April 24 | Yellow Warbler | Dendroica petechia | |||
| Jefferson | Brookville | May 2 | Canada Warbler | Wilsonia canadensis | |
| Mercer | Grove City | April 15 | Chimney Swift | Chaetura pelagica | |
| Sandy Lake | April 22 | Northern Waterthrush | Seiurus noveboracensis | ||
| Sharon | April 22 | Northern Waterthrush | Seiurus noveboracensis | ||
| April 21 | Yellow-breasted Chat | Icteria virens | |||
| Montgomery | Norristown | May 30 | Blackburnian Warbler | Dendroica fusca | |
| Philadelphia | Philadelphia | May 2 | Bay-breasted Warbler | Dendroica castanea | |
| May 15 | Canada Warbler | Wilsonia canadensis | |||
| April 20 | Henslow's Sparrow | Ammodramus henslowii | |||
| April 25 | Ovenbird | Seiurus aurocapillus | |||
| April 23 | Prairie Warbler | Dendroica discolor | |||
| Philadelphia (Germantown) | April 27 | Black-and-white Warbler | Mniotilta varia | ||
| May 6 | Black-throated Blue Warbler | Dendroica caerulescens | |||
| May 7 | Blackburnian Warbler | Dendroica fusca | |||
| May 8 | Blackpoll Warbler | Dendroica striata | |||
| April 25 | Blue-winged Warbler | Vermivora pinus | |||
| April 29 | Common Yellowthroat | Geothlypis trichas | |||
| May 1 | Northern Parula | Parula americana | |||
| May 6 | Northern Waterthrush | Seiurus noveboracensis | |||
| April 14 | Palm Warbler | Dendroica palmarum | |||
| April 27 | Yellow-rumped Warbler | Dendroica coronata | |||
| Pike | La Anna | June 7 | Bay-breasted Warbler | Dendroica castanea | |
| Somerset | Listie | March 6 | Field Sparrow | Spizella pusilla | |
| March 16 | Vesper Sparrow | Pooecetes gramineus | |||
| Wellersburg | February 16 | Red-winged Blackbird | Agelaius phoeniceus | ||
| Warren | Warren | May 30 | Tennessee Warbler | Vermivora peregrina | |
| June 6 | Yellow-rumped Warbler | Dendroica coronata | |||
| Westmoreland | New Kensington | April 20 | Early October | Barn Swallow | Hirundo rustica |