ZOOLOGY. 1057 



The birds of Ohio, W. L. Dawson {Columhiix: The Wlmiton Pub. Co., I'.iu.l, jtp. 

 XLVII \ C>7 1, pJ». Sl,Ji(j!<. .^15). — In this voliiuie the uutlior presents an ehx))oi-ate 

 arcdunt of the habits and economic; rehitions of the 1520 species of ))ir(ls known to 

 occnr in Ohio. Of this nnmber 80 species are well illustrated on colored plates and 

 the nests and ejigs of variods other species are shown in half-tone illustrations. An 

 analytical key is given for the i)urpose of assisting in the identification of the species 

 of birds and in an appendix a list is presented of birds which are supi)Osed to have 

 occurred in Ohio, and also a migration table showing the average dates of arrival and 

 departure for different species. 



Birds observed by Wellington Field Naturalists' Club, 1903 [Ontario Agr. 

 Col. (iiid E.rpt. Fiinn Upi. lUO.l, iqi. .IhJ'!). — Statistical data are i)rc'scutcd regarding 

 the iirevalence of a nundjer of species of birds. 



Fieldbook of wild birds and their music, F. S. Mathews [New York: G. P. 

 Ptitnnm's Sous, 1904, pp- XXXV-\-36S, pis. 53). — The author describes in a popular 

 manner the habits of species of birds most common in eastern United States, with 

 special reference to their songs as a means of identifying the species. 



Birds in relation to agriculture, Gunninu {Transvaal, Ayr. Jour., 2 {1904), Xo.6, 

 pp. l.'/S-l')l, ph. 5). — The feeding habits and economic importance of various species 

 of eagles, kites, and owls are discussed. 



What birds do for the farmer, Josephine C. Horney {Ohio State ]>d. Ayr. Ilpt. 

 1902, pp. 501-506). — Attention is called to the economic importance of various si^ecies 

 of birds in the destruction of injurious insects and weed seeds. 



Bird problems as related to horticulture, J. S. Cook ( Trans. Illinois Hort. Soc, 

 n. ser., 37 {1903), pj). 327-335). — The relationship of birds to the production of fruits 

 is ))riefly discussed. Notes are given on the feeding habits of certain birds and on 

 the necessity of Ijird protection. 



Birds, fruits, and insects, J. B. Smith {Proc. New Jersey State Hort. Soc, 29 

 {1004), PP- S8-93). — The economic relation of birds to fruit raising is briefly dis- 

 cussed. It is argued that no important fruit insect is controlled or even appreciably 

 reduced in numbers by the agency of birds. The author believes, therefore, that the 

 destruction of fruit by birds, particularly robins, brings about a loss to the fruit 

 grower which is quite out of proportion to the advantage gained by the presence of 

 the birds. It is recommended, therefore, that in framing bird-protection laws the 

 proviso should be inserted that these laws should not be construed to prevent 

 farmers and fruit growers from killing birds which actually injure or destroj' fruit, 

 berries, or other farm crops. 



The economic value of our native birds, H. A. Surface {Peirnsylrania Slate 

 Ih'pt. Ayr., Zdol. Quart. Bui. 1 {1904), Xo. 4, P]>- 32, j:)ls. 4)- — The author discusses in 

 a popular manner the feeding habits and economic relations of the various species of 

 owls found in Pennsylvania. 



The economic relations of crows, Schleh {Arb. Deut. Lnndw. Gcsell., 1904, No. 

 91, })p. 167). — The author's observations were made on Corvus corona, C. fruyileyus, 

 and C. comix. The detailed results of the examination of stomach contents of these 

 birds are i)resented in a tal^ular form. 



In all, 47-4 stomachs were examined, of which 93.7 per cent contained animal food 

 and 92.2 contained plant food. The plant food consisted of various grains, legumes, 

 garden crops, fruits, weeds, etc., while the animal food consisted of portions of mam- 

 mals, birds, fish, and other vertebrates, together with insects, snails, etc. The species 

 of insects eaten by crows are presented in a tabular form. The author concludes as 

 a result of his study of these birds that while much damage is done by them under 

 certain conditions, the beneficial actions of the species in question more than coun- 

 terbalance their attacks upon cultivated crops. 



Experiments in the acclimatization of IJeiothrix lutea, II. von Berlepsch 

 {Abhandl. u. 48 Ber. Ver. Xaturk. Kassel, 1902-3, pp. 270-284, fiys. 3). — A number of 



