118 



Family PALCONIDJE. 

 Genus Palco Auct. 



173. P. communis var. anatum JBonap. DUCK HAWK. Not un- 

 common during the migrations. Formerly a rare summer resident. 



174. P. lithofalco var. columbarius Linn. PIGEOX HAWK. 

 Abundant migrant, from March 20th to May 1st, and from September 

 15th to October 5th. Rare summer resident. 



175. P. sparverius Linn. SPAKKOW HAWK. Abundant migrant 

 and rather common summer resident. Arrives early iu March and 

 departs the last of September and first of October. 



Genus Pandion Sav. 



176. P. halisDtus var. carolinensis (6rmeZ.). FISH HAWK. Not 

 uncommon during March and April in spring, and during September 

 and October in fall. Some seasons this species is quite numerous, 

 especially along the Lake shore. 



Genus Wauclerus Vig. 



177. U". forficatus Ridg. SWALLOW-TAILED HAWK. According 

 to Kunnicott (111. Agl. Kept., 1853-4) this beautiful species was once 

 common in this vicinity, but was rare at the time he wrote. I can 

 testify to its scarcity at present, only two or three instances of its 

 occurrence within the last twenty years having been ascertained. 



Dr. Hoy has noted Ictinia missinsfppteniia in Wisconsin, but I have 

 no record of its occurrence in this vicinity, although it may yet be 

 observed here. 



Genus Circus Lac. 



178. C. cyaneus var hudsonius (Linn.}. MARSH HAWK. Com- 

 mon in the marshes and on prairies during the migrations; March 

 25th to April 15th, and during October and November. Said to breed 

 by Kenuicott, but I have never secii a specimen here in the breeding 

 season. 



Genus Nisus. 



179. N. fuscus Kaup. SIIAKP-SIIIXXKD HAWK. Abundant during 

 migrations; September 15th to October 30th, and April 15th to May 

 10th. A few remain to breed. 



180. N. cooperi Uonap. COOPER'S HAWK. Common summer 

 resident. Arrives the last of April and departs the last of September 

 or h'rst of October. 



Genus Astur Lac. 



181. A. palumbarius var. atricapillus (H77.). GOSHAWK. 



