: Herons, Bitterns, etc. 



59 



Southern California W.V. 

 Small numbers, about ex- 

 tensive tide-bays. 



Arizona Migrant, chiefly; 

 recorded from Colorado River 

 and its larger tributaries. 



Possibly nests in marshes of 

 Imperial Valley, California. 



Southern California S.V. 

 Rare. Occasional birds are 

 seen in favored localities near 

 coast. 



Has been recorded from 

 Arizona. 



Known to nest in great 

 marshes of Oregon and Utah, 

 and in Gulf States. 



Southwestern California 

 Res. -- Chiefly about fresh- 

 water areas. In winter more 

 numerous on tide-bays and 

 islands off the coast. Nests in 

 colonies, in high trees, in 

 secluded localities. 



Range: Pacific coast district 

 of United States. 



Res. Lower Colorado River and tributaries, and on Salton Sea and 

 marshes of Imperial Valley. Its range covers the Great Basin region from 

 the desert divide of California to the Rockies, and southward into Mexico, 

 including the northern portion of Lower California. 



