. The geographical distribution of the family Charadriidae, or, The plovers, sandpipers, snipes, and their allies . Shore birds. 313 H^MATOPUS. Subspecific characbers. Geographi- eal distribu- tion. The South-American Black Oystercatcher only differs from its more northern ally in having generally a shorter and deeper bill. Examples in my collection of the northern form have bills 3j inches in length and 0"5 in. in depth, whilst others from Chili have bills 2f in. in length and 0'6 in. in depth. It is said, however, that in a series of each the dimensions are found to overlap, so that Ame
. The geographical distribution of the family Charadriidae, or, The plovers, sandpipers, snipes, and their allies . Shore birds. 313 H^MATOPUS. Subspecific characbers. Geographi- eal distribu- tion. The South-American Black Oystercatcher only differs from its more northern ally in having generally a shorter and deeper bill. Examples in my collection of the northern form have bills 3j inches in length and 0"5 in. in depth, whilst others from Chili have bills 2f in. in length and 0'6 in. in depth. It is said, however, that in a series of each the dimensions are found to overlap, so that American ornithologists very justly regard the two forms as only subspecifically distinct. Like its representative in the Northern Hemisphere, it appears to be confined to the Pacific coast of the American continent, except that its range extends through the Straits of Magellan to the Falkland Islands. It is doubtful whether it has ever occurred north of Chili, nor is there any evidence that it is a migratory bird. Two examples from Callao and one from MoUe in South Peru in my collection appear to be somewhat intermediate, the bills being long like the North-American form, but deep like the South- American form. The bill of one of the Callao birds is represented in the upper figure of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Seebohm, Henry, 1832-1895. London : H. Sotheran
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondo, bookyear1888
