of the Genera Tetrao and Ortyx. 139 



run backwards and forwards ; and so great is her anxiety, that 

 she will venture within two or three yards of him. 



In another respect the present species agrees with T. umbellus, 

 in perching on stumps of decayed trees in the darkest part of the 

 forests, drumming, which is effected in the same way, namely, by 

 giving two or three loud distinct claps with the wings, then others 

 gradually quicker and quicker, until the sound dies in the di- 

 stance, — not unlike the sound of very distant thunder. The voice 

 is a continuation of measured sounds, not unlike the ticking of a 

 large clock. Tuck, tuck, tuck, slowly pronounced, and, when the 

 bird is on the wing, is a sort of chuckling noise. This very fine 

 bird is an inhabitant of the woody parts of the coast of North- 

 west America, between the parallels of 40° and 49° from Cape 

 Mendocina on the south, to the Straits of Juan de Fuca, Quadra, 

 and Vancouver's Island on the north. 



-o The name is a tribute to the merits of my friend Joseph Sabine, 

 Esq., whose intimate acquaintance with this widely-dispersed 

 and highly interesting genus, and whose distinguished services 

 in natural history in general, are universally known and justly 

 appreciated. 



4. T. Franklinii. Mas. Saturate plumbeo-griseus nigro fascia- 

 tus; gul4 pectore nuchdque nigris, tectricibus supra et 

 infr^ nigris, apice albo. 



Foem. Pallidior, gul4 pectore nuchdque plumbeo-griseis. 



Beak black ; irides hazel, with a large, bare, lunulated, fringed 

 scarlet spot above the eye. Head, neck and back dark 

 leaden-gray waved with narrow black bars ; throat, breast, 

 and hinder part of the neck black. Belly ash-gray. Tarsi 

 one inch long, light gray. Toes pectinated. Quills 24, 

 the third the longest ; shafts white ; under coverts bluish- 



T 2 gray. 



