. The Oölogist for the student of birds, their nests and eggs . being very melonic,and inhabits Western North Americafrom the Rocky Mountains to the Pa-cific Coast. South in winter into Mexi-co. It is casually found as far East asCentral Illinois, and is very plentifulin parts of its range in the West. 337d, Harlans Hawk (Buteo bore-alis harlani). This is the darkest form of the Red-tail, and is found in the Gulf states,and lower Mississippi Valley, Northcasually to Pensylvania, Iowa andKansas; South to Central America. In its nesting, it is different from theother Red Tails, in that it usuall


. The Oölogist for the student of birds, their nests and eggs . being very melonic,and inhabits Western North Americafrom the Rocky Mountains to the Pa-cific Coast. South in winter into Mexi-co. It is casually found as far East asCentral Illinois, and is very plentifulin parts of its range in the West. 337d, Harlans Hawk (Buteo bore-alis harlani). This is the darkest form of the Red-tail, and is found in the Gulf states,and lower Mississippi Valley, Northcasually to Pensylvania, Iowa andKansas; South to Central America. In its nesting, it is different from theother Red Tails, in that it usuallyplaces its nest in thick timber, wherethere is no broad landscape that thebird may view from the nest. Herewith we present a picture ofthe well known naturalist, Isaac , of Philo, Illinois, caught in theact of climbing for Red Tails eggs inSoutheastern Illinois, during April,1907. Mr. Hess is an authority on thelocal habits of these birds in hisneighborhood. OLD SUBSCRIBERS, compare thismonths issue with seme cf those intimes gone by. THE OOLOQIST. 73. Taking a set of Bufflehead Ducks Eggs, Alberta, June 1S06. Photo byWalter Raine, his son on the ground Typical Alberta, Muskeg Country 71 THE OOLOGIST. ? The Bufflehead Duck. The Butter Ball, as this species isusually called, is one of the lovliest ofall the Duck tribe. Found, except asa casual straggler, only in NorthAmerica, we may with pride call thisbeautiful and sprightly bird all ourown. As a picture of loveliness, ittakes rank in the same classwith our Wood Duck. This spe-cies ranges throughout North Americafrom the far Arctics into Cuba andMexico. It is a cold weather bird,only coming to us when Winter weath-er may be expected, and returningNorth with the first rifts in the a swimmer and diver this duck ex-cells most of the duck family. It gen-erally feeds in deep water, bringing upits food from considerable depths. Its flight is tremendous. Straighton, with a velocity seldom equalled bybirds. Alighting, it


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Keywords: ., bookcentury1800, bookdecade1880, bookidologistf, booksubjectbirds