116 THE WILSON BULLETIN— September, 1921 



northeast to Foit Hmitli, Arkansas ; northwest to Cherokee 

 countv' and from there back to Xormau. 



The tirst t^\o censuses occurred May 80th, the others 

 were taken from June Dth to 10th and from June 26th to 

 July 15th. We saw, therefore, only summer birds, and, 

 for the most part, breeding birds. In the beginning the 

 nuiles were much in evidence singing; a little later there 

 was less singing but females as well as males were seen 

 with food for the young; and by July many young were 

 with the parents, es[»ecially Horned Larks and Mourning 

 Doves. A few birds had begnn to gatlier in Hocks l)y tlie 

 middle of Jnly. as Cowbirds. Kcd- winged Blackbirds an<l 

 Cliff Swallows ; but none of these flocks were large, forty- 

 two birds being the greatest number seen together. 



Our primary object was to obtain data on the dis- 

 tribution and comparative abundance of birds in the State, 

 but upon tabulating our results we found otlier relation- 

 shii>s that Avere of interest, especially the effects of weather 

 and of the character of the country. 



The total number of native birds seen during 780 miles 

 of Roadside Censuses was 0755, which gives an average 

 of 4.S birds to a mile. (In all the tables and calculations, 

 English Sparrows are omitted entirely; they will be 

 treated separately.) 



The effects of weather, time of day, and to a small ex- 

 tent, the time of year, are shown in Table II. 



TABLE II. 



Numbers of Native Birds Seen 

 Showing Effect of Weather, Time of Day and Time of Year 



