July, 1908 ANNOTATED LIST OF THE BIRDS OF MESA COUNTY, COLO1L?DO 1,53 parture of species at Grand Junction, which have been used in this list in practic- ally their entirety. Miss Myra Eggleston, Ouray, Colorado, formerly of Grand Junction: An annotated list of 47 species observed by her in that vicinity, and complete notes on 19 species, that have been copied verbatim in the absence of any other informa- tion on those particular species. Mr. Floyd Smalley, Coilbran: Notes on 10 species observed by him in Plateau Valley, which had not been encountered by the writer. Dr. M. V. Watson, Plateau City: Migration notes on 6 species of ducks observed by him in Plateau Valley. Mr. E. R. Warren, Colorado Springs: An annotated list of 22 species observed in the vicinity of Grand Junction. Mr. P. McCaffrey, DeBeque: Migration and nesting notes on the ducks at DeBeque. State Historical and Natural History Society, Denver: Notes on 3 species collected by Messrs. Will C. Ferrill and H. G. Smith at Grand Junction. Without the above information much of the relative completeness of this list would be lacking, as nearly all of it covered information not contained in the writer's notes. Notwithstanding the information collected from various parts of the County there yet remains a large number of species whose established range undoubtedly includes Mesa County, and whose absence from this list can only be accounted for by the small amount of information available regarding Mesa County Ornithology. Beside the many species which without doubt occur regularly in the County there are also a number of western species whose extreme eastern limit may extend to western Colorado, and if this is the case, the valley of the Grand River forms a natural highway into Mesa County from the west which is probably the route tray- eled by these western species. Prof. Cooke in his Birds of Col- orado says, "The whole of north- western Colorado remains unex- plored. What a field for the Orn- ithologist! As large as the whole of New England outside of Maine, and containing the whoIe valley of the Grand River and its tributaries, it will reward the zealous seeker with many Pacific forms not now known to Colorado. No other part of the State will probably show so large a return as the region around. Grand Junction." It is unfortu-' nate that this list does not bear out Prof. Cooke's last statement more fully, as only a few rare western MAP OF COLORADO SHOWING POSITION'OF MESA COUNTY forms are included in it (and nearly all of these were furnished by Prof. Cooke), but the fact that it does not bear him out in no way detracts from the force of his statement, as most of the observations from that section are of a very general nature and practically no close study or collecting has been done in that locality, and it is perfectly safe to predict that careful study of this section will be productive of many rare and unique discoveries.
