ORNITHOLOGICAL EXPLORATIONS. 



243 



Tables of dimensions. 

 A.— PICA KAMTSCHATICA. 



* Iris dark brown. Bill and feet black. 

 B.-PICA SERICEA. 



C— PICA PICA. 



, The Magpie is a common resident of Petropaulski, 

 On the 18th of May, 1883, 1 examined a nest bnilt on the first branches 

 of a Salix, about 9 feet above the ground, which under the tree was 

 covered with 2 feet of snow. The structure which was not yet finished 

 inside, consisted of dry sticks, forming a globuhir mass, the exterior 

 diameter of which was about 30 inches. The nest, which was exactly 

 like that of P. pica, contained no eggs at that time. The owners were 

 shy, leaving the nest when I was still a great distance off. 



