...Nesting birds spendmuch more time in the South than migrants, and during the weeks whenthe old birds are feeding young they are almost incessantly engagedin the pursuit of insects...
William T. Hornaday 「Our Vanishing Wild Life」
...The251 birds seen by Coffey (1960:292) at Cacalilao, Veracruz, on May11, 1954, were probably migrants...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...All these birds were possibly autumnal migrants, but the datesare early; the species has not previously been recorded on migrationin México before August (Mexican Check-list, 1950:101)...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...Two species are known only as migrants, and thestatus of one, the Sora Rail, is uncertain...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...Late North American spring migrants in Mexico...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...It is good to ride forth on an Octobermorn with the object of renewing acquaintance with nimblewagtails, sprightly redstarts, stately demoiselle cranes andother newly-returned migrants...
Douglas Dewar 「A Bird Calendar for Northern India」
...Besides these regular migrants there are many species whichspend a few days or weeks in the plains, leaving the Himalayaswhen the weather there becomes very inclement...
Douglas Dewar 「A Bird Calendar for Northern India」
...Miller (1955a:173) took spring migrants ofW...
Emil K. Urban 「Birds from Coahuila, Mexico」
...aterat Las Delicias on August 15, both of which were considered early migrants...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Amadon and Phillips (1947:580) remarked that two immature Painted Buntings, "apparently migrants, were taken at Las Delicias on August 10 and 11...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Miller (1955a:175) noted several migrants "each day in the last week of April ...
Emil K. Urban 「Birds from Coahuila, Mexico」
...This wedge formation of flight over land andsea is not only peculiar to these waterfowl,but is not apparently adopted by any otherlong distance migrants...
Frederick G. Aflalo 「Birds in the Calendar」
...Almost all such species are migrants, but many migrantshave different temporal characteristics, and the categories thus areshown to be discrete on the basis of temperature at time of breeding...
Richard F. Johnston 「The Breeding Birds of Kansas」
...Most individuals seen in the Stateare passage migrants...
Richard F. Johnston 「The Breeding Birds of Kansas」
...west-southwest of Sisal; specimens taken there may have been migrants...
Erwin E. Klaas 「Summer Birds From the Yucatan Peninsula」
...After these migrants, which travel from the centre of the tree to thesurface, we will mention some others which from the surface plungeinto the interior...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...Other animals caught three or fewertimes were considered to be migrants...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
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