ZooL.-VoL. II.] LOOMIS— CALIFORNIA WATER BIRDS. 363 



as well as immature birds in these gatherings, evidencing 

 that the young do not lack the guidance of the old in the 

 closing movements of the return migration. After May 14 

 only a few stragglers were encountered. Two on June 5 

 were the last. One of these was shot, and had the testes of 

 a breeding bird. In 1894, southbound Northern Phalaropes 

 arrived July 11 (Calif. W. B. No. I, pp. 187, 223), the 

 interval between the two migrations at Monterey being 

 therefore but little over a month. 



Except in the case of lost or diseased birds, the presence 

 of boreal species in the summer months in the region below 

 the breeding habitat is seemingly explained by late return 

 and early exodus migration. 



The shore was not patrolled, so little was learned of the 

 waders frequenting the beaches and surf-beaten rocks. The 

 following were met with : Sanderling (a large flock May 

 19), Wandering Tatler (call-notes heard May 8), Black 

 Turnstone (common May 8), Black Oyster-catcher. 



California Academy of Sciences, 

 September 29, 1900. 



