en the Migration of Birds. 125 
on occafion, I have been an eye witnefs ; having feen.it fly with 
amazing fwiftnefs, equal to that of any Hawk: it alfo runs very 
fait, 
Fringilla Spinus—he Skin, or Aberdavine. —— 
This little bird was obferved only in the years 1768, 1769, 1774, 
1780 and 1781. It is undoubtedly a bird of paflage, {pending a 
fhort time with us early in the fpring, probably in its paflage from 
one country to another, as it neither breeds with us in fummer, nor 
appears here in the winter. I never faw it before the 5th of April, 
nor after the 30th of the fame month. I obferve it feeds on the 
feeds which are in the cones of the fir.—With us it is called the 
Barley-bird, from its appearing about the time of fowing barley, and 
continuing with us no longer than the barley-fowing lafts. 
Mr. Latham fays it is not unfrequent in England in the winter. 
With us it is feldom feen at all. I never faw it in the winter. The 
longeft ftay I ever obferved it to make, was from the roth to the 
3oth of April in the year 1780. 
Lanius Collurio—#he red-backed Butcher Bird. 
This bird breeds.with us, and generally appears about the oth 
or roth of May ; having never been feen by me earlier than the gth 
of May, and one year I did not fee it till the 7th of June. 
Motacilla Phoenicurus—the Redfart. Mot. Trochilus—Willw Iren. 
Mot. Sylvia—White Throat. Mot. Oenanthe—Wheat Ear, and Mot. 
Lufcinia— Nightingale. 
Thefe fmall birds generally appear pretty early in April, and 
continue to make their appearance till September, fometimes rather 
later, as I have feen the Wheat Ear and Willow Wren in Oétober. 
The fame temperature of the air in the fpring, which invites the . 
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