. Michigan bird life : un elenco di tutte le specie di uccelli conosciute per verificarsi nello Stato insieme con un profilo della loro classificazione e un resoconto della storia della vita di ogni specie, con particolare riferimento al suo rapporto con l'agricoltura ... . fare insetti di patate e scarabei di cetrioli a strisce. Inoltre, mosche, falene, cavallette, e un'immensa varietà di altri insetti sono stati presi. Gli uccelli diventano molto grassi in autunno e quando si spostano a sud grandi quantità durante la seconda metà di agosto thej^ sono talvolta shotfor cibo, in particolare a sud. Senza dubbio sono valuablealises della ag

• Collaboratore: Reading Room 2020 / Alamy Foto Stock
• ID dell’immagine: 2CNRCGG
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• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 1278 x 1954 px | 21,6 x 33,1 cm | 8,5 x 13 inches | 150dpi

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. Michigan bird life : a list of all the bird species known to occur in the State together with an outline of their classification and an account of the life history of each species, with special reference to its relation to agriculture ... . do potato bugs and striped cucumber beetles. In addition, flies, moths, grasshoppers, and an immense variety of other insects aretaken. The birds become very fat in the fall and when moving southwardin large numbers during the latter half of August thej^ are sometimes shotfor food, particularly at the south. Unquestionably they are valuableallies of the agriculturist and should be rigidly protected from destruction. Up to about 1897 the Nighthawk was a very abundant bird throughoutMichigan, as elsewhere at the north. Each year, late in August, great flocksappeared in the afternoon, and sometimes for an hour or two the air wouldbe fairly alive with them, all feeding more or less, but steadily workingsouthward. Then followed a decade of rapid and marked decrease; migrat-ing flocks were no longer seen and it seemed possible that the completeextermination of the species might be at hand. Since 1906, however, therehas been a decided gain in numbers, and with better legislation and the grow-. Plate XXXIX. Nighthawk.Courtesy of National Committee of Audubon Societies. LAND BIRDS. 381 iiig sentiment for protection of all our insect eating birds it seems likelythat the species may regain its former numbers. TECHNICAL DESCRIPTION. This bird lias the general appearance of the Whippoorwill, together with the small billlarge eye, weak feet and pectinate middle claw; the bristles about the mouth, however, are very small, the wings are long and pointed, and the tail is emarginate or somewhatforked. Adult male: Upper parts black, more or less spotted or mottled with buff or rusty ontop of head, back and scapulars, and with whitish on the wing-coverts; sides and back ofneck with series of buffy spots forming imperfect stripes; a whitish line over

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1910
• bookidmichiganbird
• bookyear1912