4 CALIFORNIA ACADEMY OF SCIENCES. 



I have seen pelicans, geese, Lewis's woodpecker and 

 others crossing between eight and nine thousand feet 

 above sea level. Mountain quail cross on foot, some of 

 them making a journey of sixty or eighty miles, no 

 matter how deep the snow in spring, returning in fall, 

 sometimes over a foot or two of snow on the divide, 

 leaving their summer resorts where there is no snow, to 

 reach their well known winter home. A great many of 

 the summer visitants enter the San Joaquin Valley by 

 the Tehachapi Pass, altitude 4,000 feet. Col. N. A. 

 Goss, in the spring of 1884, noticed terns at Julian, Sau 

 Diego County, altitude 4,500 feet, " crossing froin the 

 Gulf of California to the Pacific." Mr. Walter J. Mor- 

 gan saw an immense migration of sand-hill cranes and 

 geese which lasted about two weeks, by day and night, 

 from Ensenada, Lower California, to Port San Felipe, 

 on the Gulf, in Oct. and Nov., 1884, much of the Penin- 

 sula between these localities being no less than 4,000 

 feet above sea level. 



Probably a great many small birds take nearly the 

 same course in fall, cross near the head of the Gulf and 

 spend the winter in Mexico. Mr. F. Stephens, who 

 has collected a long time in San Bernardino Valley, 

 says the spring migrants enter that valley from the 

 southeast and return in an opposite direction in fall. 

 He thinks a great many cross the Gulf of California from 

 Mexico. 



As the names of all correspondents are connected with 

 the information they furnished, it is not necessary to 

 name them elsewhere. 



The authorities quoted, sparingly in most instances, 

 but in their own language, usually, or a part of it, are: 



Dr. J. S. Newberry. Explorations and Surveys for a 

 Railroad Route from the Mississippi Valley to the Pacific 

 Ocean. Vol. 6, part 4, number 2, War Department. 



