Summer Birds of a Northern Ohio Jlarsh. 229 



85. FuLiGULA VALLiSNERiA, Stephens. — Canvas back Duck, — Of 

 occasional occurrence in summer. (Porter.) 



86. BucEPHALA ALBEOLA, Baircl. — Dipper Duck; Butterball. — Fre- 

 quently seen and taken in summer. (Porter.) 



87. Mergus 3IERGANSER, Linuieus. — Shell drake; Goosander. — 

 One specimen observed, evidently disabled, thougti still capable of dis- 

 tancing a sail-boat, assisted by a "cedar breeze" as we found by ex- 

 periment. He did not attempt to dive, but paddling with both feet and 

 wings, at times almost or quite raising himself clear of the water, he 

 led us a stern chase of about three miles, until the failing breeze and 

 approaching twilight forced us to abandon the race with a high opinion 

 of his powers of endurance. 



88. Mergus serrator, Linnaeus. — Red-hreasted 31erganser. — Iden- 

 tified in summer by Mr. Porter. 



Order Steganopodes: Pelicans, Cormorants, etc. 

 Famil}' Pelecanid^ : Pelicans. 



89. Pelecanus trachyrhynchus, Latham. — White Pelican. — One 

 or two instances of the occurrence of this species in summer are noted 

 by Mr. Porter, 



Famil}^ Phalacrocoracid^ : Cormorants. 



90. Graculus dilophus floridanus, Coues. — Florida or Double- 

 crested Cormorant. — Two specimens, male and female, taken by Mr, 

 Porter, in June, 1878. 



Order Longipenes : Gulls, Terns and Petrels. 

 Famil}' Larid^e: Gulls and Terns. 



91. Sterna hirundo, Linnseus. — Common Tern; Sea Swalloiv. — 

 Four specimens taken and others observed b}^ Mr. Porter. We were 

 informed that the "larger'' Terns (probably this species) are quite 

 plentiful in the marsh during rough weather, which. drives them in from 

 the lake. 



92. Hydrochelidon lariformis, Coues. — Black Tern„ — A very 

 common summer resident in the marsh; nesting, or rather laying its 

 eggs on the little islands of deca^ang vegetation and mud formed by 

 sunken muskrat houses. Three eggs constitute a full set, and they are 

 apparently rolled about in the mud purposel}', until well coated, so as 

 to hide the markings and thereby make them less conspicuous. In 

 two or three instances onh^ did we observe any attempt at a nest, and 

 these wt)uld not have been recoo-nized as such without the eo-os, con^ 



