...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」
...They are among the latestof the migrants to reach ourborders and arrive in theMiddle States about the latterpart of May, when theyare quite common...
Chester A. Reed 「The Bird Book」
...At different hours of the day I was a visitor, andthere I heard the first spring migrants on theirarrival—chiff-chaff, willow wren, cuckoo, redstart,blackcap, white-throat...
W. H. Hudson 「Birds and Man」
...This species is a summer visitor in Buenos Ayres, and is one of the lastto arrive and first to depart of our migrants...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...They areamong the last migrants to come north in the spring and among thefirst to leave in the autumn because insects don't hatch out in coolweather, and the birds must always be sure of plenty to eat...
Neltje Blanchan 「Birds Every Child Should Know」
...Twelvesupposed migrants seen along Laguna Chila (Cacalilao), Veracruz,by Coffey (1960:291) on May 31, 1957, may have been summeringbirds...
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」
...The bird of which he speaks, Wilson's black-cap warbler, isone of the less common of our regular Massachusetts migrants...
Bradford Torrey 「The Foot-path Way」
...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」
...Along with the other migrants come numbers of rooks andjackdaws...
Douglas Dewar 「A Bird Calendar for Northern India」
...Migrants of the eastern flyway as well as migrants associated with western North America pass through this section of Coahuila...
Emil K. Urban 「Birds from Coahuila, Mexico」
...cineraceus) "common in the conifers and oaks of the upper levels of the mountains [Sierra del Carmen], at 6500 to 7000 feet, as winter visitants or migrants...
Emil K. Urban 「Birds from Coahuila, Mexico」
...cineraceuscommon in the Sierra del Carmen; on April 3, 5, and 10 the birds were "abundant, as though a wave of migrants were passing through...
Emil K. Urban 「Birds from Coahuila, Mexico」
...olivaceusfrom Sabinas on May 22 and from Las Vacas Creek on June 7 as late spring 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」
...The peak of nestingessentially coincides with that characteristic of migrants...
Richard F. Johnston 「The Breeding Birds of Kansas」
...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」
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