Abstract
Between 20 september and 12 january 1988 we carried out a study of the birds present at estancia "El Cuadro" and Monumento Natural Bosques Petrificados, Deseado Department, Santa Cruz province, Argentina. We recorded 66 species of birds. Five (7,6%). were common, 21 (31,8%) were frequent, 26 (39,4%) were occasional and 14 (21,2%) were rare. Twenty eight species (42,4%) were nesting in the arca. Data about habitat use by birds are presented. Neoxolmis rubetra and Progne modesta are first recorded for Santa Cruz province.
References
Cabrera,A.L.1976.Regionesfitogeográficasargentinas.Enc.Arg.Agric.y Jard.,TomoTI,Acme,BuenosAires.
Narosky,S.y D.Y zurieta.1987.Guíaparala identificacióndelasavcsdeArgentinay Uruguay.Asoc.Qm.delPlata.
Nores,M.D.Yzurietay R.Miatcllo.1983.Listay distri-bucióndclasavesdeCórdoba,Argentina.Bol.Acad.Nac.Ciencias56:1-114.
Qlrog,C.C.1979.Nuevalistadela avifaunaargentina.Op.Lilloana27:1-134

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.