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Plumage A Bird’s Entire Feather Coat. Northern Goshawk. 125. Subadult and Definitive Plumages. 126. Plumage Nomenclature: Humphrey-Parkes System. Subadult Plumages. Definitive Plumages. Lovelle and Fitzpatrick 2016. Traditional Plumage Naming Systems. 3. Natal Down Plumage.

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  1. Plumage A Bird’s Entire Feather Coat Northern Goshawk 125

  2. Subadult and Definitive Plumages 126

  3. Plumage Nomenclature: Humphrey-Parkes System Subadult Plumages Definitive Plumages Lovelle and Fitzpatrick 2016

  4. Traditional Plumage Naming Systems 3 Natal Down Plumage Juvenal Plumage Winter Plumage Nuptial Plumage

  5. Traditional Plumage Naming Systems: Problems • Different Plumages not always Correlated with Breeding Behavior • No “Winter” Season in Tropics • Some Birds breed More or Less than Once a Year

  6. Humphrey-Parkes Plumage Naming Systems 3 Natal Down Plumage Juvenal Plumage Basic Plumage BASIC PLUMAGE: “Main Plumage” Alternate Plumage

  7. Subadult Plumages 132 Ring-Billed Gull Northern Goshawk 133 137 Golden Eagle

  8. Subadult Plumages (Natal Down, Juvenal Plumage) Natal Down http://www.adfg.alaska.gov/static/species/speciesinfo/northerngoshawk/images/northern_goshawk_nest_rainer_altenkamp_wikimedia_commons.jpg Juvenal Plumage (≠ Juvenile Plumage) Juvenal Feather: First Contour Feather

  9. Subadult Plumages (Passeriformes) • No Natal Down • Juvenal Plumage: First Subadult Plumage 131 “Naked as a Jaybird”

  10. Subadult Plumages • 1st Alternate • 1st Basic • 2nd Alternate • 2nd Basic • etc. Basic Plumage: Worn Most of Year Alternate Plumage: Additional Plumage Acquired Between Basic Plumages (Numbered in Subadult Plumages) Lovelle and Fitzpatrick 2017

  11. Definitive Plumage (Adult Plumage) 125 138

  12. Definitive Plumages Alternate Plumage (formerly, “Breeding Plumage”) Basic Plumage (formerly, “Winter Plumage”) http://www.bing.com/images/search?view=detailV2&ccid=ZzxwgTS1&id=9CEA75FD9BE222AE50C8E8DC9D9669980EB3A7A5&q=summer+tanager+basic+plumage&simid=608041094155273414&selectedIndex=0&ajaxhist=0 http://www.bing.com/images/search?view=detailV2&ccid=DCSYXO8F&id=038D4D51B8F2EAF461F25073A2A7B69B1B598AC2&q=summer+tanager+basic+plumage&simid=607988059905197138&selectedindex=3&mode=overlay&first=1&thid=OIP.DCSYXO8F68g47WRjcJrZygEdEs (Summer Tanager) Definitive Plumages not Numbered

  13. Definitive Plumage https://www.allaboutbirds.org/guide/PHOTO/ LARGE/wtptar_glamour_davidhollie.jpg Supplementary Plumage https://www.allaboutbirds.org/guide/PHOTO/LARGE/Wtptarm-FrankFogarty.JPG http://d2fbmjy3x0sdua.cloudfront.net/sites/default/ files/White-tailed_Ptarmigan_b52-1-655_l_1.jpg Alternate Plumage Basic Plumage

  14. Definitive Plumage • Eclipse Plumage • Basic Plumage in Waterfowl • Males acquire Basic (“Eclipse”) Plumage • in Early Summer, of Short Duration • Males in Basic (“Eclipse”) Plumage • Indistinguishable from Females • Females acquire Basic (“Eclipse”) Plumage • in Mid-Summer, of Longer Duration • Female Basic (“Eclipse”), Alternate Plumage • Very Similar Fig. 4.40 in Lovelle and Fitzpatrick

  15. Applications of Humphrey-Parkes System Basic (“Eclipse”) Plumage: Shaded Alternate Plumage: Unshaded http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1023&context=icwdmwfm

  16. Feather Wear and Tear • Fate of .. • Broken Feathers • Missing Feathers http://apps.startribune.com/blogs/user_images/jjwilliams_1338318587_Crow4299.jpg

  17. Feather Wear and Tear: Effect on Color Worn Feathers Fresh Feathers

  18. Feather Wear and Tear: Effect on Color Fresh Feathers Worn Feathers

  19. Feather Wear and Tear Fall Spring

  20. MOLTING Shedding All or Part of the Feather Coat and Replacing with Fresh Feathers 127

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