BONASA. — BOTAURÜS. 
471 
BONASA (Tetraonidae) Stephens, Gener. Zool. 1819. XI. 298. — Gray, Genera 
Birds 1845. III. 516. = Tetrao Lin. 
Distinguished from the former by the Tarsi having the basal half clothed with 
long hair like feathers and the apical part maked and covered with scales. 
betulina Strickland, Ornith. syn. = Tetrao bonasia Lin. 
canadensis Brisson, Ornith. I. 203. Tb. 20. Fig. 1. g. Tetrao canadensis L. 
cupido Stephens, Gener. Zool. XI. 299. — Tetrao cupido Lin. 
europaea Gould, Birds Europe Tb. 251. = Tetrao bonasia Lin. 
freti hudsonis Brisson, Ornith. I. 201. = Tetrao canadensis Lin. 
lagopus Brehm, Naumannia 1855. V. 287. = Tetrao lagopus Lin. 
minor Brehm, Naumannia 1855. V. 287. = Tetrao lagopus Lin. 
rupestris Brehm, Naumannia 1855. V. 287. = Tetrao rupestris Gmel. 
scotica Brisson, Ornith. I. 199. Tb. 22. Fig. 1. = Tetrao albus Gmel. 
sylvestris Brehm, Naumannia 1855. V. 287. = Tetrao bonasia Lin. 
umbelloides Baird, Birds N. America 927. — ? 
umbellus Stephens, Gener. Zool. XI. 300. = Tetrao umbellus Lin. 
BONASIA (Tetraonidae) Bonaparte, Compt. rend. 1856. XLIL 880. = Tetrao L. 
Bee médiocre, presque droit, garni de plumes k peu près jusqu'au milieu de la 
mandibule supérieure, qui est peu recourbée à l'extrémité; narines basales, latérales, 
couvertes par les plumes du front; au dessus des yeux un étroit espace nu; ailes 
courtes, arrondies, subobtuses; queue médiocre, arrondie, composée de seize 
rectrices; tarses aux deux tiers ou à moitié seulement enplumés; doigts nus, pec- 
tinés sur les bords; ongles allongés, obtus, creusés en dessous; plumes du vertex 
allongées et formant une petite huppe. 
albigularis Bonaparte, Compt. rend. 1856. XLII. 880. 
betulina Bonaparte, Compt. rend. 1856. XLII. 880. = Tetrao bonasia Lin. 
bonasia Bonaparte, Compt. rend. 1856. XLII. 880. — Tetrao bonasia Lin. 
cupido Gray, Handlist Birds II. 277. = Tetrao cupido Lin. 
Sabinei Bonaparte, Compt. rend. 1856. XLII. 880. — Tetrao Sabinei Dougl. 
sylvestris Gray, List Genera Birds 1841. 40. = Tetrao bonasia Lin. 
BOSCHAS (subgen. Anatis) Swainson, Classific. Birds 1857. IL 367. = Anas L. 
Bill of equal breadth throughout. The lamina quite concealed. Nape of the 
neck crested. Tertial quills generally curved upwards. ^ 
carolinensis Swainson, Classific. Birds II. 367. = Anas carolinensis Gmel. 
circia Swainson, Classific. Birds II. 367. = Anas querquedula Lin. 
crecca Swainson, Classific Birds II. 367. = Anas crecca Lin. 
discors Swainson, Classific. Birds II. 367. — Anas discors Lin. 
domestica Swainson, Classific. Birds II. 367. = Anas boschas Lin. 
glocitans Swainson, Classific. Birds IL 367. = Anas formosa Giorgl 
major Ray, Synopsis Avium I. 150. — Anas boschas Lin. 
BOSCIS rosea Brehm, Vögel Deutschlds. 401. = Pastor roseus Tem. 
BOSTRYCHIA (Ibidae) Reichenbach, Natürl. Syst. 1851. — Bonaparte, Con- 
spectus Avium 1855. II. 152. Ibis Savg. 
Rostrum gracile, pedes breves, robusti: alae praelongae, amplae, cauda lon- 
gula aequalis. Caput ex toto plumosum, caruncula gularis valde elongata. 
carunculata Reichenbach, Natürl. Syst. Tb. 143. Fig. 1011. = Ibis carun- 
culata Rüpp. 
BOTAURUS (Ardeidae) Brisson, Ornith. 1760. V. 444. — Stephens, Gener. 
Birds 1847. III. 557. =^ Ardea Lin. 
St/non.: Butor Swains. 
Bill long and straight, with the culmen straight, flattened at the base and 
rounded and curved to the tip, which is strongly emarginated. and the sides com- 
pressed; the gonys short and ascending; the nostrils basal and placed in a deep 
groove that extends for two thirds of the length of the bill, with the opening 
lineas. Wings long, with the first three quills equal and longest. Tail short and 
even. Tarsi as long as the middle toe, rather strong and covered in front with 
broad transverse scales. Toes very long and rather slender, the outer toe longer 
