BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 3 
of the American Museum, and to Dr. C. Hart Merriam, Mr. Samuel 
Henshaw, Mr. Walter Faxon, Mr. Harry C. Oberholser, and Dr. Charles 
W. Richmond, for assistance of various kinds. In short, all these as 
well as others of my friends have responded most generously to the calls 
which I have made upon them. 
The task of preparing the synonymy has been intrusted to my assist- 
ant, Mr. Walter Deane, who has performed it with infinite care and 
faithfulness, verifying every citation by direct examination of the orig- 
inal text. A fuller synonymy has been given for the thirty or more birds 
which appear to be either peculiar to the region under consideration or 
especially prominent members of its summer fauna, but in the cases of 
most of the others Mr. Deane has cited only publications which relate 
more or less directly to this region, giving no references to the more 
general works on ornithology save where these include original descrip- 
tions, illustrations, or critical discussions strictly pertinent to the subject 
in hand. In other words, the synonymy is intended to serve, at least 
primarily, merely as an index to what has been published on the char- 
acteristic birds of the Cape Region, and on the local history only of 
those which visit it during migration or in winter, or which breed but 
easnally or very sparingly within its confines. 
All the original measurements are in inches and hundredths of an 
inch. 
Cape Recion or Lower CALIFORNIA. 
Mr. Bryant? defines this region as comprising ‘“ that terminal portion 
of the peninsula southward from the northern base of the mountains 
between La Paz on the Gulf shore and the town of Todos Santos on the 
Pacific Coast.” He adds, ‘‘ There is no more sharply defined faunal and 
flora area, that occurs to me now, excepting that of islands, than is em- 
braced in the region above defined. Part of it lies within the Tropic 
of Cancer, and the balance along the Gulf shore, and having mainly a 
Gulf drainage. The climate as influenced by its peculiar sea-bound 
tropical situation and rainy seasons is distinctively different from any- 
thing existing to the northward. ... Mainly a mountainous section, 
some of the peaks being 6,000 feet high, it is separated for an hundred 
miles or more from the peninsula northward by a long expanse of low, 
level or rolling country.” 
Mr. T. S. Brandegee writes me: “In reply to your question con- 
1 Zoe, II. 1891, 185, 186. 
