1![This article started out as a bit of an argument. Jerry Liguori and Brian Sullivan, in a previous article in Birding, presented evidence against the conventional wisdom that gray Northern Harriers are necessarily older m This article started out as a bit of an argument. Jerry Liguori and Brian Sullivan, in a previous article in Birding, presented evidence against the conventional wisdom that gray Northern Harriers are necessarily older m](https://www.pdfsearch.io/img/9547a839d3504708c5d93b6ae4418309.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:08
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2![Journal of Field Ornithology J. Field Ornithol. 81(2):186–194, 2010 DOI: j00276.x Using molt cycles to categorize the age of tropical birds: Journal of Field Ornithology J. Field Ornithol. 81(2):186–194, 2010 DOI: j00276.x Using molt cycles to categorize the age of tropical birds:](https://www.pdfsearch.io/img/cec136cffc20b6b75b6fb0094bb3a9c5.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:10
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3![The Wilson Journal of Ornithology 121(3):556–567, 2009 BREEDING SEASONS, MOLT PATTERNS, AND GENDER AND AGE CRITERIA FOR SELECTED NORTHEASTERN COSTA RICAN RESIDENT LANDBIRDS JARED D. WOLFE,1,2,4 PETER PYLE,3 AND C. JOH The Wilson Journal of Ornithology 121(3):556–567, 2009 BREEDING SEASONS, MOLT PATTERNS, AND GENDER AND AGE CRITERIA FOR SELECTED NORTHEASTERN COSTA RICAN RESIDENT LANDBIRDS JARED D. WOLFE,1,2,4 PETER PYLE,3 AND C. JOH](https://www.pdfsearch.io/img/0e0fa54e625e22398fb2c072e152d44c.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:10
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4![Modifications to a moltbased ageing system proposed by Wolfe et al) Modifications to a moltbased ageing system proposed by Wolfe et al)](https://www.pdfsearch.io/img/b2652595228bf0660cf1bb5724f5707e.jpg) | Add to Reading ListSource URL: birdpop.orgLanguage: English - Date: 2015-02-27 22:35:08
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5![The Auk 124(2):ART–XXX, 2007 © The American Ornithologists’ Union, 2007. Printed in USA. REVISION OF MOLT AND PLUMAGE TERMINOLOGY IN PTARMIGAN (PHASIANIDAE: LAGOPUS SPP.) BASED ON The Auk 124(2):ART–XXX, 2007 © The American Ornithologists’ Union, 2007. Printed in USA. REVISION OF MOLT AND PLUMAGE TERMINOLOGY IN PTARMIGAN (PHASIANIDAE: LAGOPUS SPP.) BASED ON](https://www.pdfsearch.io/img/c87ab0a5a96923ffde6059193ca45ee6.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:08
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6![Molts and Plumages of Ducks (Anatinae) Author(s): Peter Pyle Source: Waterbirds, 28(2):Published By: The Waterbird Society DOI: http://dx.doi.org0208:MAPODA]2.0.CO;2 URL: http:/ Molts and Plumages of Ducks (Anatinae) Author(s): Peter Pyle Source: Waterbirds, 28(2):Published By: The Waterbird Society DOI: http://dx.doi.org0208:MAPODA]2.0.CO;2 URL: http:/](https://www.pdfsearch.io/img/805447010d5451d925bb921eda72a4c5.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:08
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7![The First Basic Problem Revisited: Reply to Commentaries on Howell et alAuthor(s): Steve N. G. Howell, Chris Corben, Peter Pyle, Danny I. Rogers Source: The Condor, Vol. 106, No. 1 (Feb., 2004), ppPubl The First Basic Problem Revisited: Reply to Commentaries on Howell et alAuthor(s): Steve N. G. Howell, Chris Corben, Peter Pyle, Danny I. Rogers Source: The Condor, Vol. 106, No. 1 (Feb., 2004), ppPubl](https://www.pdfsearch.io/img/042b6845627b8df82d7338d47c6e0f97.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2015-02-27 22:35:08
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8![The Wilson Journal of Ornithology 128(1):56–69, 2016 MOLT PATTERNS, AGE CRITERIA, AND MOLT-BREEDING DYNAMICS IN AMERICAN SAMOAN LANDBIRDS PETER PYLE,1,5 KEEGAN TRANQUILLO,2 KIMIKO KAYANO,3 AND NICOLE ARCILLA3,4 ABSTRA The Wilson Journal of Ornithology 128(1):56–69, 2016 MOLT PATTERNS, AGE CRITERIA, AND MOLT-BREEDING DYNAMICS IN AMERICAN SAMOAN LANDBIRDS PETER PYLE,1,5 KEEGAN TRANQUILLO,2 KIMIKO KAYANO,3 AND NICOLE ARCILLA3,4 ABSTRA](https://www.pdfsearch.io/img/877d8b754a4a27b6d0a50f481afec000.jpg) | Add to Reading ListSource URL: birdpop.orgLanguage: English - Date: 2016-05-13 18:00:05
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9![Journal of Field Ornithology J. Field Ornithol. 81(2):186–194, 2010 DOI: j00276.x Using molt cycles to categorize the age of tropical birds: Journal of Field Ornithology J. Field Ornithol. 81(2):186–194, 2010 DOI: j00276.x Using molt cycles to categorize the age of tropical birds:](https://www.pdfsearch.io/img/351270aaab109f2cffd0a363135151e1.jpg) | Add to Reading ListSource URL: birdpop.orgLanguage: English - Date: 2015-02-27 22:35:10
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10![The Wilson Journal of Ornithology 128(1):56–69, 2016 MOLT PATTERNS, AGE CRITERIA, AND MOLT-BREEDING DYNAMICS IN AMERICAN SAMOAN LANDBIRDS PETER PYLE,1,5 KEEGAN TRANQUILLO,2 KIMIKO KAYANO,3 AND NICOLE ARCILLA3,4 ABSTRA The Wilson Journal of Ornithology 128(1):56–69, 2016 MOLT PATTERNS, AGE CRITERIA, AND MOLT-BREEDING DYNAMICS IN AMERICAN SAMOAN LANDBIRDS PETER PYLE,1,5 KEEGAN TRANQUILLO,2 KIMIKO KAYANO,3 AND NICOLE ARCILLA3,4 ABSTRA](https://www.pdfsearch.io/img/7f2795502b51d1c83f755dfab1a15f05.jpg) | Add to Reading ListSource URL: www.birdpop.orgLanguage: English - Date: 2016-05-13 18:00:05
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