288 



U. S. NATIONAL MUSEUM BULLETIN 217 



APRIL 30 MAY 



139 



Gavia immer 



Gavia adamsii 



Gavia arctica pacifica 



Gavia stellata 



Olor columbianus 



Branta canadensis faverneri 



Branfa nigricans 



Anser albifrons fronfalis 



Chen hyperborea hyperborea 



Anas platyrhynchos plafyrhynchos 



Anas acuf a 



Anas carolinensis 



Mareca americana 



Spatula clypeata 



Ay-fhya marila nearcfica. 



Aythya affinis 



Clangula hyemalis 



Hisfrionicus histrioniciis 



MelaniHa deglandi 



Melanifta perspicillafa 



Mergus serrator serrator 



Bufeo lagopus 



Aquila chrysaetos canadensis APR 7,'48 IIAR 29,'49 



Circus cyaneus hudsonius 



Faico peregrinus anatum 

 Faico columbarius bendirei 

 Grus canadensis canadensis 

 Charadrius semipalmatus 

 Pluvialis dominica dominica 

 Squafarola squatarola 

 Arenaria inferpres interpres 

 Capella gallinago delicafa 

 Numenius phaeopus hudsonicus 

 Tringa solifaria cinnamomea 

 Heferoscelus incanum 

 Tofanus flavipes 

 Erolia melanofos 

 Erolia b,airdii 

 Erolia minufilla 

 Erolia alpina pacifica 

 Limnodromus scolopaceus 

 Ereunefes pusilius 

 Tryngifes subruficollis 

 Limosa lapponica 

 Crocethia alba 

 Phaiaropus fulicarius 

 Lobipes lobafus 

 Stercorarius pomarinus 

 Sfercorarius parasiticus 

 Sfercorarius longicaudus 

 Larus hyperboreus barrovianus 

 Larus canus brachyrhynchus 

 Sterna paradisaea 

 Asio flamrrieus flammeus 

 Sayornis saya yukonensis 

 Eremophila alpestris arcticola 

 Lanius excubitor invictus 

 Wilsonia pusilla pileolata 

 Euphagus carolinus carolinus 

 Leucosticte tephrocotis irvingi 

 Acanthis hornemanni exilipes 

 Acanthis flammea flammea 

 Passerculus sandwichensis anthinus 

 Spizella arborea-ochracea 

 Zonotrichia ieucophrys gambelii 

 Passerella iliaca zaboria 

 Calcarius lapponicus aiascensis 

 Calcarius pictus 

 Plectrophenax riivalis nivalis 



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 9 



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 0219 

 391 

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 391 



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 123 



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 20 



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 J 3, 'SI MAY 



N 



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N 



9,'52 APR 



J, '6 3 



Figure 10. — First arrivals of migrants at Anaktuvuk, 1948-19S3. Number is the last 

 figure of the year, N marks the date when the first egg was found, and dashes mark the 

 period during which eggs were laid. 



