BOHEMIAN WAXWING 77 



irregular winter visitor over most of the State but appears most regu- 

 larly in the mountain valleys about the base of the Blue Mountains. 

 * * * In the winter of 1919-20 there occurred a big invasion of 

 these birds, and they were present in numbers in Portland, Corvallis, 

 and other points in western Oregon as well as over most of eastern 

 Oregon, reaching at least as far south as Adel, Lake County, where 

 Gabrielson collected a bird out of a flock of approximately three hun- 

 dred on April 3, 1920." 



This invasion extended to Nebraska, where large flocks were seen all 

 over the State. Many hundreds were seen also in northern Illinois. 

 This flight also reached New England, as far south as Massachusetts, 

 but in comparatively small numbers. According to Horace W. 

 Wright (1921), there had been a somewhat heavier invasion of New 

 England during the latter part of the winter of 1918-19. There was a 

 marked spread of Bohemian waxwings in Colorado in the winter of 

 1930-31, but it was not nearly of the magnitude of that which occurred 

 in 1916-17. Gabrielson and Jewett (1940) report that the birds ap- 

 peared again in numbers during the winter of 1931-32, "going far 

 south into California, according to published reports." 



DISTRmUTION 



Range. — The Bohemian waxwing breeds in wooded sections of the 

 northern i^art of the Northern Hemisphere, wandering irregularly 

 southward in winter, sometimes in immense flocks. 



Breeding range. — The Bohemian waxwing is a vagrant and is ir- 

 regular in its occurrences. Comparatively few nests of young have 

 been found, and the outlining of the range where they may be found 

 breeding in North America depends to a large extent on records of 

 birds seen in the breeding season. This area extends north to north- 

 ern Alaska (Kobuk River, Fort Yukon, and the Porcupine River 

 above Coleen), northern Mackenzie (Aklavik, Fort Anderson, Leith 

 Point on Great Bear Lake, and Fort Reliance) ; northeastern Sas- 

 katchewan (Theitaga Lake); and northern Manitoba (Churchill), 

 the easternmost point. South to nortliern Manitoba (Churchill and 

 Cochrane River) ; southern Alberta (Flagstaff, Buffalo Lake near 

 Alix, Red Deer, and Banff) ; northwestern Montana (Glacier Park 

 and Granite Park) ; northern Idaho (Sandpoint) ; and central Wash- 

 ington (Lake Cle Elum). It has also been found in summer near the 

 east base of Mount Evans, Colo., at about 12,000 feet altitude. West 

 to central Washington (Lake Cle Elum) ; central British Columbia 

 (mountains near Alta Lake, Quesnel, Hazelton, Telegraph Creek, and 

 Atlin) ; southwestern Yukon (Burwash Landing) ; and to central and 



