28 Trans. Acad. Sci. of St. Louis. 



With drainage, deforestation and settlement of swampy- 

 regions this species is fast receding southward. Twenty years 

 ago Mr. E. W. Nelson observed the Anhinga in the vicinity of 

 Cairo, where Hennicott had reported it as of common occurrence 

 in 1865. In 1896 it was still a fairly common summer resident 

 in the watery region of Dunklin and Pemiskot Counties, but 

 since the railroads penetrated the Peninsula in all directions and 

 made it easily accessible to the lumberman and hunter, there is 

 little hope for a continuance of its abode in Missouri, though 

 a few pairs may still be found in secluded spots. 



Family Phalacrocoracidae. Cormorants. 



120. Phalacrocorax dilophus (Swain.), Double-crested Cor- 

 morant. 



Pelecanus (Carbo) dilophus. Graculus dilophus. 



Geog. Dist. — Eastern North America, north to Great Slave 

 Lake, east to Utah and Wyoming. Breeds chiefly north of 

 United States and winters from the Gulf States southward. 



In Missouri Cormorants are still common in migration from the 

 middle of March till the end of May and in fall from September 

 25 to November 15, chiefly in April and October. They are 

 rarer in the western part of the state. 



*120a. Phalacrocorax dilophus florid anus (Aud.). Florida 

 Cormorant. 



Phalacrocorax floridanus. Southern Double-crested Cormorant. 



Geog. Dist. — South Atlantic and Gulf States and lower Miss- 

 issippi Valley to the mouth of the Ohio. 



In the Peninsula of Missouri Cormorants are still breeding in 

 considerable numbers. When feeding young in their nests in the 

 high timber along the Mississippi, troops of them are continually 

 flying to and from the distant feeding grounds in the bayous 

 or lakes and sloughs in the Little River and St. Francis 

 basin. 



[121. Phalacrocorax mexicanus (Brandt). Mexican Cormo- 

 rant]. 



Carbo mexicanus. 



Geog. Dist. — Mexico, Western Gulf States and lower Missis- 

 sippi Valley to mouth of the Ohio. It was taken near Cairo in the 



