. Nests and eggs of North American birds; . on, will frequently be of the greatest assistance in determining towhat species the eggs belong, but in the case of any rare and littleknown species, the only satisfactory identification is by securing theparent bird. The mere comparison of eggs will not answer as a means of iden-tification. There is far more variation in the size, shape, and colora-tion of eggs of the same species than most persons are aware of, andto pick out of a large series a really typical set of some kinds is amatter of considerable difficulty. An egg is a difficult object to
. Nests and eggs of North American birds; . on, will frequently be of the greatest assistance in determining towhat species the eggs belong, but in the case of any rare and littleknown species, the only satisfactory identification is by securing theparent bird. The mere comparison of eggs will not answer as a means of iden-tification. There is far more variation in the size, shape, and colora-tion of eggs of the same species than most persons are aware of, andto pick out of a large series a really typical set of some kinds is amatter of considerable difficulty. An egg is a difficult object to properly describe, especially as it isonly lately that any intelligent effort has been made to set forth theground tints or the markings. Concerning the number of eggs laid by certain species, there havebeen more mistakes made by writers than about any other subject con-nected with Oology. Especially has this been the case with the Rap-tores, and in this work the effort has been made to present reliable in-formation on that point. J. P. 07 ILLUSTRATIONS. BLUE-GRAY GNATCATCHER AND NEST, PIED-BILLED GREBES AND NEST, TUFTED PUFFINS AND NESTING BURROW, . WOOD DUCKS AND NESTING PLACE, FLAMINGOS AND NESTS, SWALLOW-TAILED KITE AND NEST, BURROWING OWL AND NESTING BURROW, . CHIMNEY SWIFTS AND NESTS, TRAILLS FLYCATCHER AND NEST, BALTIMORE ORIOLE AND NEST, . PARULA WARBLER AND NEST, AMERICAN DIPPERS (WATER OUZELS) AND NEST, NEST OF CALIFORNIA BUSH-TIT, PLATEI IIIII IV V VI VII VIII IX X XI XII XIII - •32L NESTS AND EGGS OF NORTH AMERICAN BIRDS. NOTE.—The nomenclature followed in the present edition of this work is that of the AmericanOrnithologists Union Code and Check-List.* The numbers to the right in brackets are those of ProfessorRidgways nomenclature, which were used in former editions. The measurements of the eggs are given ininches and hundredths, except in such cases where correspondents have furnished the measurements inmillimeters. These will be found reduced to inches a
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Keywords: ., bo, bookcentury1800, bookdecade1880, booksubjectbirdsnorthamerica
