NESTING-HOUSES 47 



some of our larger birds, such as the bluebird, the 

 swallow, and the martin. 



ParkmarCs Wren. — On the Western coast the 

 place o£ the house wren is taken by Parkman's 

 wren, which is a common bird-house occupant. 

 Dr. Welty writes that these wrens require an 

 entrance hole quite large enough for the English 

 sparrow to enter easily. 



Vigors' s Wren. — Vigors's wren also nests in 

 bird-houses in Oregon, but is smaller than the pre- 

 ceding species, so that the hole may be made small 

 enough to keep out the sparrows. 



BewicKs Wren. — Two observers have fur- 

 nished data regarding this bird. Mr. 0. Widmann 

 of St. Louis writes : " Bewick's wrens have made 

 nests and laid eggs in my boxes at Old Orchard, 

 Mo. (a suburb of St. Louis), in two years, both 

 broods being unsuccessful. As the Bewick's wren 

 comes to us about the middle of March, a month 

 earlier than the house wren, it had already laid 

 eggs when the latter appeared on the scene and 

 wanted possession of the box. There was some 

 quarreling going on for a few days, after which 

 the Bewicks left the place entirely." 



Mr. W. G. Savage, of Monteer, Mo., writes: 



