...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」
...Cases 5 to 8 contain the migrants arranged according tothe order of their arrival from the South in the vicinity ofNew York City...
Frank M. Chapman 「What Bird is That?」
...This beautiful Warbler was formerly considered one ofour rarer migrants, but of recent years it appears to beincreasing in numbers...
Frank M. Chapman 「What Bird is That?」
...Of the millions of migrants that stream across the sky every springand autumn, none attract so much attention as the wild geese...
Neltje Blanchan 「Birds Every Child Should Know」
...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」
...North American migrants in the state of Veracruz, Mexico: a summary...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...Examples of thesemore local migrants are the grey-headed and the verditerflycatchers, the Indian bush-chat and, to some extent, theparadise flycatcher and the Indian oriole...
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」
...olivaceusfrom Sabinas on May 22 and from Las Vacas Creek on June 7 as late spring migrants...
Emil K. Urban 「Birds from Coahuila, Mexico」
...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」
...Probably,however, these summer migrants are ashappy as most of their class...
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」
...Many persons have contributed field observations such as dates ofarrival and departure for migrants, and the various activities of thebreeding cycle for most of the species here discussed...
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」
...The greater number of the migrants proceed along the north shore ofthe bay to Little River and are there confronted with a choice ofvarious further routes...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...The explanationof such a phenomenon is none too obvious; and in any event, there wereexceptions enough, though the general statement may hold true for thebulk of the migrants...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...When migrants were numerous on the marshes at Chadwick I heard this note often...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...Only data from mice caught four or more times were used because theseindividuals probably had home ranges in the study area, whereas those caughtfewer than four times may have been migrants...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
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