11![Publications of the Oklahoma Biological Survey 2nd Series Volume 13:1-6, 2014 © Oklahoma Biological Survey, 2014 Point counts surveys of land birds at the Four Canyon Preserve, Ellis County, Oklahoma, 2014 Publications of the Oklahoma Biological Survey 2nd Series Volume 13:1-6, 2014 © Oklahoma Biological Survey, 2014 Point counts surveys of land birds at the Four Canyon Preserve, Ellis County, Oklahoma, 2014](https://www.pdfsearch.io/img/560b90c71a0a49ee968e593ef3e98a20.jpg) | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2015-03-05 14:26:52
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12![Patuxent Wildlife Research Center Grassland Breeding Birds on National Wildlife Refuges in the Northeast U.S. The Challenge: Grassland breeding birds have declined substantially in the Northeast and Mid-Atlantic States o Patuxent Wildlife Research Center Grassland Breeding Birds on National Wildlife Refuges in the Northeast U.S. The Challenge: Grassland breeding birds have declined substantially in the Northeast and Mid-Atlantic States o](https://www.pdfsearch.io/img/94ce129229ac2a600b41e4af2e3d7cbe.jpg) | Add to Reading ListSource URL: www.pwrc.usgs.govLanguage: English - Date: 2012-12-12 10:48:15
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13![Patuxent Wildlife Research Center Grassland Breeding Birds on National Wildlife Refuges in the Northeast U.S. The Challenge: Grassland breeding birds have declined substantially in the Northeast and Mid-Atlantic States o Patuxent Wildlife Research Center Grassland Breeding Birds on National Wildlife Refuges in the Northeast U.S. The Challenge: Grassland breeding birds have declined substantially in the Northeast and Mid-Atlantic States o](https://www.pdfsearch.io/img/0c9c0c43b7851f49fc7089b57d5bb517.jpg) | Add to Reading ListSource URL: www.pwrc.usgs.govLanguage: English - Date: 2012-12-12 10:48:15
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14![Habitat Associations of Neotropical Migrants in Belize, Central America, during the Non-breeding Season Victoria D. Piaskowski International Coordinator Birds Without Borders—Aves Sin Fronteras Habitat Associations of Neotropical Migrants in Belize, Central America, during the Non-breeding Season Victoria D. Piaskowski International Coordinator Birds Without Borders—Aves Sin Fronteras](https://www.pdfsearch.io/img/f2846dc416fbe3e9fcdaa29d786eafe5.jpg) | Add to Reading ListSource URL: www.zoosociety.orgLanguage: English - Date: 2010-09-15 16:11:04
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15![ORNITOLOGIA NEOTROPICAL 15: 155–162, 2004 © The Neotropical Ornithological Society REPRODUCTIVE BIOLOGY OF THE GRAY–CROWNED YELLOWTHROAT (GEOTHLYPIS POLIOCEPHALA PALPEBRALIS) IN CENTRAL BELIZE ORNITOLOGIA NEOTROPICAL 15: 155–162, 2004 © The Neotropical Ornithological Society REPRODUCTIVE BIOLOGY OF THE GRAY–CROWNED YELLOWTHROAT (GEOTHLYPIS POLIOCEPHALA PALPEBRALIS) IN CENTRAL BELIZE](https://www.pdfsearch.io/img/b50d015003e210cf8f7faa1270fca806.jpg) | Add to Reading ListSource URL: www.zoosociety.orgLanguage: English - Date: 2010-09-13 16:10:12
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16![January 2006 Update on the Birds Without Borders – Aves Sin Fronteras® project of the Foundation for Wildlife Conservation, Inc. and the Zoological Society of Milwaukee. As you may know, we completed five years of fie January 2006 Update on the Birds Without Borders – Aves Sin Fronteras® project of the Foundation for Wildlife Conservation, Inc. and the Zoological Society of Milwaukee. As you may know, we completed five years of fie](https://www.pdfsearch.io/img/b6e79a1a225568b272af7e93070eee3a.jpg) | Add to Reading ListSource URL: www.zoosociety.orgLanguage: English - Date: 2010-09-13 16:10:12
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17![Birds of North America / Quelea / Sexual selection / Sperm competition / Common Yellowthroat / Birkhead / ANIM / Computing / Semen / Evolutionary biology Birds of North America / Quelea / Sexual selection / Sperm competition / Common Yellowthroat / Birkhead / ANIM / Computing / Semen / Evolutionary biology](/pdf-icon.png) | Add to Reading ListSource URL: www.ncbi.nlm.nih.govLanguage: English |
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18![United States Department of Agriculture Natural Resources Conservation United States Department of Agriculture Natural Resources Conservation](https://www.pdfsearch.io/img/dbf8664b1c882ee1dd5e82434b096522.jpg) | Add to Reading ListSource URL: www.nwtf.orgLanguage: English - Date: 2009-12-18 16:20:30
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19![Natural Resources Conservation Service August 2009 Natural Resources Conservation Service August 2009](https://www.pdfsearch.io/img/a6aaa53ea3f4276c9616451a3142fcb6.jpg) | Add to Reading ListSource URL: www.nwtf.orgLanguage: English - Date: 2009-12-18 16:35:50
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20![Tennessee Warbler ____________________ Nashville Warbler _____________________ Kentucky Warbler _____________________ Common Yellowthroat__________________ Hooded Warbler ______________________ American Redstart ________ Tennessee Warbler ____________________ Nashville Warbler _____________________ Kentucky Warbler _____________________ Common Yellowthroat__________________ Hooded Warbler ______________________ American Redstart ________](https://www.pdfsearch.io/img/f9da76cd4ef5e4621a57d3371b9532a1.jpg) | Add to Reading ListSource URL: tnstateparks.comLanguage: English - Date: 2014-10-06 07:28:59
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