30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 85 



from the northern race is sHghtly smaller, and by a migrant form 

 Butco lincatus lincatus that is present in winter and is slightly larger. 

 The specimens from the west coast are from slightly smaller birds 

 than those from Melbourne, suggesting that possibly two forms are 

 presented in the fossil material. This cannot be definitely decided 

 from the bones now at hand. 



The red-shouldered hawk is here first recorded in fossil form. 



BUTEO PLATYPTERUS (Vieillot) 



Broad-winged hawk 

 Sparvius platyptcnts Vieillot, Tabl. Encycl. Aleth., vol. 3, 1823, p. 1273. 



In the Seminole Field in Pinellas County, W. W. Holmes obtained 

 the distal end of a left humerus, and the proximal part of a left meta- 

 carpus. This species has not been recorded previously as a fossil. 



The broad-winged hawk today is a winter visitor to Florida ar- 

 riving from the north in October and departing in March. 



GERANOAETUS sp. 



Eagle 



The distal ends of three ulnae obtained by W. W. Holmes in the 

 Seminole Field come from an eagle of this genus, which was repre- 

 sented in the Pleistocene of California by two species G. fragilis and 

 G. grmnelli and of which there is one living species G. mclanolcucus 

 in South America. The bones from Florida agree in size with the 

 latter. The material is considered too fragmentary to warrant specific 

 determination at the present time. The genus is here first recorded 

 from eastern North America. 



HALIAEETUS LEUCOCEPHALUS (Linnaeus) 



Bald eagle 



Faico IcHcoccpbahis Linnaeus, Syst. Nat., ed. 12, vol. i, 1766, p. 124. 



The bald eagle is represented by fragments from the Seminole 

 Field, and by two broken radii from Saber-tooth Cave, near Lecanto, 

 collected by W. W. Holmes, as well as by part of an ulna collected 

 near Venice by J. E. Moore and a number of bones from near Mel- 

 bourne, obtained by Gidley and Singleton. The collection made by 

 Singleton for the Museum of Comparative Zoology contains part of 

 a metacarpal. Several of the Melbourne specimens are practically 

 complete, and show no differences from the modern bird which is 

 common at present in Florida. 



