Jan., 1909 HISTORY OF COLORADO ORNITHOLOGY 31 wish to make later on. These gentlemen are devoting much time to the study of the more remote parts of the state particularly the eastern boundary, where quite extensive observations have been made at Julesburg, Holly, Wray, and Kit Carson. In addition to this the southern boundary has been worked, principally at Water- vale, Trinidad, Las Animas, and Pagosa Springs.. A resume of the more impor- tant discoveries made by the gentlemen was written by Smith and publisht in the AuJ: of April, 1'908. This article adds four new species to the state list, and gives important additions to our knowledge of the distribution of 35 species of rare oc- currence in Colorado. Among our own members, the list of birds observed by Warren on his ex- tended trip thru north central and northwest Colorado, enumerating 93 species; MAP OF COLORADO SHOWING LOCALITIES (SHADED) IN WHICH ORNITHOLOGICAL INVESTIGATIONS OF MORE OR LESS IMPORTANCE HAVE BEEN CARRIED ON Publisht by permission o! Clason Map Co., Denver and his list of the birds of extreme southeastern Colorado containing 84 species; the list of birds of southwestern Colorado by M. French Gilman, containing 120 species; and the list of 154 birds of Mesa County by myself, constitute the local lists publisht during the past two years, all of which appeared in TH? Co?)o?. In addition to the work done by local students in recent years Mr. Merritt Cary of the U. S. Biological Survey has spent the greater part of three seasons within the state working out life zones, and his notes on the bird life of the various sections visited when publisht will doubtless contain much of interest. This outlines in general the more important work that has been done in Col-
