236 



14. Cyanurus stelleri (Gm.). 



I have not yet met with specimens, which I can certainly refer to 

 Prof. Baird's C. macrolophus, but I possess examples of two other 

 allies of the present species — C. diadematus from the Table land of 

 Mexico, and C. coronatus from Southern Mexico and Guatemala. 



15. Ceryle alcyon (Linn.). 

 Several specimens. 



16. Nephcecetes borealis (Kennerly). — N. niger, Baird, Rep. 

 p. 142. — Cypselus borealis, Kennerly. 



I am much pleased at being able to handle a specimen of this fine 

 Swift from Vancouver's Island, and to compare it with examples of 

 Gosse's Cypselus niger from Jamaica in my own collection. Prof. 

 Baird is right in saying that the difference between specimens of 

 these birds is small, yet I am not quite convinced of their specific iden- 

 tity. The bird of the Antilles is smaller in every part, there seems 

 to be a considerable difference in the breadth of the skull, and the 

 northern bird has much more of the fine white edging to the feathers 

 of the face than is found in the southern species, and is generally 

 browner and not so dark in colouring. I am inclined on the whole 

 to think that the birds may yet prove to be distinct. 



17. Hylotomus pileatus (Linn.); Baird, Rep. p. 107. 



18. PlCUS GAIRDNERI, Aud. 



19. Sphyropicus ruber (Gm.) ; Baird, Rep. p. 104. 



20. COLAPTES MEXICANTJS (Sw.). 



21. Tinnunculus sparverius (Linn.). 



22. Columba f asci at a, Say. 



23. Tetrao obscurus, Say. 



This bird appears to be the Tetrao obscurus of Say, and the species 

 generally known and described under that name. The tail has a 

 broad terminal band of pale slate-colour, and I can hardly believe 

 that the bird figured in ' Northern Zoology' (pi. 59), in which, 

 besides other differences, the tail is described and figured as uniform 

 black, can belong to this same species*. 



24. Bonasa sabinii, Douglas ; Baird, Rep. p. 631. 



25. Oreoortyx pictus (Douglas) ; Baird, Rep. p. 642. 



26. Aphriza virgata (Gm.). 



I believe there can be no doubt about the occurrence of this bird 



* Sir William Jardine has already expressed this opinion in letters to myself 

 and in a note in the ' Edinburgh Philosophical Magazine ' for April 1859. 



