4() Iowa Orxithologist. 



"Cooke's BirfU of Colorado." The work sets foui-th the present kiiowledo;p 

 of the distribution and migration of Colorado birds. There is also included a 

 biblio^rapliy of the subject and an historical reAaew of tlie profjress of ornitho- 

 logical investigation in the state. The total number of species and varieties of 

 birds known to occiu- in Colorado is 360, of which 228 are known to breed. This 

 is a larger number of species than has been taken in any state east of the Missis- 

 sippi, and is exceerled by only one state of the Union, that is by Nebraska by 

 nearly 400 species. The copiously annotated list of 360 species is arranged in 

 accordance with the classification of the A. O. U. check list. The A. O. U. 

 number is omitted and only the successive numbers of the birds found in Color- 

 ado are entered. Preceedingr the list proper, the species are classified in the fol- 

 lowing manner : residents 87, regular winter visitants from thenortli 24, regular 

 breeders that sometimes occur in winter 17, rare or accidental winter visitants 

 33, summer residents 228, summer visitants not known to breed 15, migrants 58, 

 stragglers 48, regular visitants from east and soutn-east 14, rare visitants from 

 east and south-east 83, regular visitants from west and south-west 20, rare vis- 

 itants from west and south-west 12. It would have been preferable if the author 

 had placed the 48 stragglers or doubtful species in a seperate list instead of 

 placing them in tlie Ijody of the woi'k. As a whole, the work is a valuable con- 

 tribution to the ornithological literature of Colorado. Mr. Cooke displayes rare 

 skill and efficiency in its preparation. 



PUBLICATIONS" RECEIVED. 



Beal, F. E. L., Some Common Birds, in tlieir relation to agriculture. cBull. 

 No. 54, U. S. Dept. of Agriculture, 1897, pp. 1-40, 22 figs.) 



Cooke, W. W.. The Birds of Colorado, (Bull. Colorado Agr. Exper. station. 

 No. 37, pp. 1-143, March, 1897.) 



Bulletin, Michigan Ornithological Club, Vol. 1. No. 2, April, 1897. 



"General Notes," Bull. "Nos. 14-15, Wilson Orn. Chap, of A. A., May-July, 

 1897. 



Le Naturaliste Caiiadien. Vol. 24, Nos. 5-7, May- July, 1897. 



Museum, Vol. 3, Nos. 7-9, May- July, 1897. 



Nidologist, Vol. 4, Nos. 8-10, April- June, 1897. 



Oologist, Vol. J 4, Nos. 4-6, April- June, 1897, 



Oregon Naturalist, Vol. 4, Nos. 5-7, May-July, 1897. 



O.sprey, Vol. 1, Nos. 9-11, May- July, 1897. 



Popular Science News, Vol. 3], Nos. 5-7, May-July, 1897. 



Recreation, Vol. 6, No. (i, Jum^ ]S97. 



Stories from Nature. Vol. J, No. ], Julie, 1897. 



Eight new members (seven active and one associate) liave been admitted to 

 the I. O. A. since the list published in the January, 1897, Iowa Ornithologist. 

 To active meniber.ship, Hall H. Thomas, Decorah ; George C. Hoover, West 

 Branch ; Henry Elridge, Decorah ; E. D. Carter, Berkely ; John S. Kinner, 

 Fayette; Frank Robertson, Fayette; Harris I. Smullen, Chnton and Bert H. 

 Wilson, Rock Island, 111., to as.sociate membership. 



