iSS6.] Thompson oh the Birds of Western Manitoba. 4S3 



doubtless reached the ishind from the mainhxnd, and being non- 

 migratoiy their continued residence under new conditions has 

 effected very consideralile changes of size and coloration. 



The essential differences of the island bird from californica 

 are its large size, deeper colors, especially of the brown on back, 

 and the blue under tail-coverts instead of white. With reference 

 to its coloration, it is a curious fact that all the colors are 

 much deeper than of specimens from the northern counties of 

 California and of Oregon where, from the presence of deep 

 forests and a heavy rainfall, the coloration should be darker than 

 anywhere to the southward. .Specimens of californica from the 

 mainland, both in California and Oregon, appear to be remark- 

 ably uniform in coloration. In its blue under tail-coverts insnla- 

 ris is like xvoodkozisei, but otherwise its resemblance to that form 

 is no closer than to calij'orttica. 



Several other species of land birds were found to inhabit the 

 island, and doubtless there were a considerable number not de- 

 tected in the very hurried search, especiall}- as but a small por- 

 tion of the island was visited. Specimens were obtained ot 

 Otocoris alpestris riibca^ SturJiclIa magna neglecta^ Carpo- 

 dacus frontalis rhodocolptis^ Melospiza fasciata samitelis^ 

 and HclmintJiophila celata hitescens. None of these, however, 

 so far as the few specimens testify, show noteworthy differences 

 from the respective mainland forms. 



THE BIRDS OF WESTERN MANITOBA— ADDENDA. 



BY ERNEST E. THOMPSON, 



[N. B. — Hitherto I have written under the assumed name of "Seton" ; henceforth 

 I shall write and be known only by my true name, as above.] 



Mk. Ridgway informs me that in the National Museum at Washington 

 there is a specimen of true Pcdicecetcs p/iasianellus from Lake ^Vinnipeg. 

 The common Manitoban form is probably campestris. 



My brother, Dr. A. S. Thompson, has sent me from Carberry, a Great 

 Crested Flycatcher (A/via re //us crinitus), thus confirming my aural iden- 

 tification as published. Also a Bluebird {Sialia sialis) with nest and 



eggs- 



25S. Sturnella magna. Meadow Lark. — Gi\en by Professor Macoun 

 as found at -'Grand Valley and north of Lat. 51.° " 



