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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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Plumage A Bird’s Entire Feather Coat Northern Goshawk 125
Plumage Nomenclature: Humphrey-Parkes System Subadult Plumages Definitive Plumages Lovelle and Fitzpatrick 2016
Traditional Plumage Naming Systems 3 Natal Down Plumage Juvenal Plumage Winter Plumage Nuptial Plumage
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
Humphrey-Parkes Plumage Naming Systems 3 Natal Down Plumage Juvenal Plumage Basic Plumage BASIC PLUMAGE: “Main Plumage” Alternate Plumage
Subadult Plumages 132 Ring-Billed Gull Northern Goshawk 133 137 Golden Eagle
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
Subadult Plumages (Passeriformes) • No Natal Down • Juvenal Plumage: First Subadult Plumage 131 “Naked as a Jaybird”
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
Definitive Plumage (Adult Plumage) 125 138
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
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
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
Applications of Humphrey-Parkes System Basic (“Eclipse”) Plumage: Shaded Alternate Plumage: Unshaded http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1023&context=icwdmwfm
Feather Wear and Tear • Fate of .. • Broken Feathers • Missing Feathers http://apps.startribune.com/blogs/user_images/jjwilliams_1338318587_Crow4299.jpg
Feather Wear and Tear: Effect on Color Worn Feathers Fresh Feathers
Feather Wear and Tear: Effect on Color Fresh Feathers Worn Feathers
Feather Wear and Tear Fall Spring
MOLTING Shedding All or Part of the Feather Coat and Replacing with Fresh Feathers 127