§. XXXV. 
But It is fald, we are unable to determine to what particular country thefe American birds of palTage emigrate. 
This, with refpecf to many fpecies, is flridly true. The obfervation, however, does not apply to all the migratory 
birds which I have mentioned. 
§. XXXVI. 
It is pretty certain, that fome of our migratory birds do not remove to a very great diftance. Of this number 
are thofe fpecies which even in the depth of winter make their appearance among us when we have a few 
days of warm and open weather. The Blue-Bird is one of thefe birds.* It is probable that it does not often re¬ 
move far. Perhaps, it goes to the fea-coaft, where the temperature is more equable. Perhaps, however, thefe 
birds might, with more propriety, be confidered as Refidents. They, certainly, fometimes continue with us the 
whole winter. They may eafily find a fecure retreat from the winter’s cold in the neighbourhood of the fea, and 
in clofe thickets of wood. PofTibly, thofe fpecies which are feen among us in mild winters, do not commonly re¬ 
tire as far fouth as the others. But this is only conjefture. We are certain that the Turdus Polyglottos, the Ardea 
Herodias, and feveral others, which occafionally winter in Pennfylvania, do not winter in the fouthern Hates. 
§. XXXVII. 
The greater number of our migratory birds feem to remove to a very confiderable diflance from us. It is proba¬ 
ble, that they pafs their winters in the Carolinas, Georgia, theFloridas, Mexico, Surinam, Brafil, and all the warm 
parts of South-America, and the Weft-India-Iflands. That, in general, they remove farther fouth than the fouth¬ 
ern parts of the United-States may fafely be inferred from the very fmall number of our birds that is known 
to hiemate in this part of the country. Thus, the Swallows are no more obferved to winter in the fouthern Hates 
than they are in Pennfylvania. And my friend Mr. Bartram aflures me, that he does not know more than three 
of the Spring Birds of Paflage that regularly winter in that part of the Union. Thefe are the Mufcicapa carolinenfis 
(Cat-Bird), Columba carolinenfis (Turtle-Dove), and the Turdus minor, or Little Thrulh. They winter as far 
north as Cape-Fear, in North-Carolina. I do not fuppofe, however, that this is the whole liH of the paflenger- 
birds of Pennfylvania that continue the winter through in the fouthern Hates. Some have, probably, efcaped Mr. 
Bartram’s obfervation. At any rate, it will not be doubted, that during very mild winters many fpecies con¬ 
tinue in thefe Hates, fince, during fuch winters, feveral fpecies remain in Pennfylvania. I amaflured, that the Rice- 
Birds often pafs the whole winter in South-Carolina; and fome gentlemen, with whom I have converfed on the 
fubjed, are even of opinion, that the fpecies regularly hiemate in that Hate. This, however, I prefume is a mif- 
take. Mr. Catefty fays the Mocking Bird hiemates in Carolina. That it does fo occafionally, there can be little 
doubt: but it is pretty certain, that, in general, it is a migratory blrd.f I fufpedl that, befides the three fpecies men¬ 
tioned by Mr. Bartram, the following birds pretty regularly hiemate in fome of the fouthern Hates, particularly 
South-Carolina, and Georgia, and in the country of Florida : Oriolus phoeniceus, Gracula Quifcula, Picus auratus, 
Picus erythrocephalus, Fringilla pecoris, Alauda alpeHris, Charadrius vociferus, Rallus virginianus, Scolopax Gal- 
hnago, and a good many of the anferes, 
* Sec Sedlon III. Page la. 
t Ardiic Zoology. Vol. II. page l6. It is a curious faA, that previous to the cold winter of 1779-1780, or 1783-1784 (T am not pofitive which), the 
Mocking-Bird more commonly remained in the vicinity of Philadelphia and other parts of Pennfylvania, during the winter-feafon, than it has done fince that time. I 
am inclined to think, that the extreme feverity of the feafon I allude to has frightened thefe birds away, I am fcnfiblc, however, that this mode of explaining the fa(ft 
will not appear fatisfadlory to thofe naturalifts who believe, that the inftin^l of animals is a vh impelhns, a“ determinate” fomething; and that they never acr^ulreany 
knowledge by experience. Very dilferent is my opinion, as I fuall fully fhow in a work on the Inftind of animals, in which I have been, for fome time, engaged. 
