GLOSSARY 17 



TIBIA. The part of the leg next above the tarsus; the "drum-stick;" 

 the tibia corresponds to the "shin" of the human leg (fig. 23). 



TRACHEA. The windpipe. 



TRANSVERSE. Crosswise. 



TULE (pronounced tu-lee). A form of bulrush, a round-stemmed, reed- 

 like plant growing in an aquatic habitat. 



TYPE FORM. See explanation in section on "Scientific Nomenclature." 



UNDERPARTS. Those parts of the body below a line drawn along 

 either side from the corner of the mouth to the side of the tail. 



UNDER TAIL-COVERTS. The feathers covering the bases of the tail- 

 feathers below; the crissum. 



UNDER WING-COVERTS. The wing "lining"; the feathers covering 

 the bases of the flight-feathers on the underside of the wing (fig. 20). 



UPPERPARTS. Those parts of the body above a line drawn along either 

 side from the corner of the mouth to the side of the tail. 



UPPER TAIL-COVERTS. The feathers covering the bases of the tail- 

 feathers above (fig. 16). 



UPPER WING-COVERTS. The feathers covering the bases of the flight- 

 feathers above (fig. 19). See Greater, Middle, and Lesser coverts. 



VADE MECUM (Latin) Go with me; a constant companion. 

 VARIEGATED. Marked with different colours. 

 VERMICULATIONS. Fine, irregularly wavy lines, like pathways of 



innumerable worms, from which the word is derived. 

 VERTEBRA (pi. vertebrae). A single section of the backbone. 

 VINACEOUS. Wine-coloured. 

 VISCERA. The internal organs of the body. 

 VISITOR. A bird found regularly or irregularly, but not permanently, 



in a certain district. 



WEB (of feather). That part of the vane of a feather on either side of 



shaft. 



(between toes). A membrane-like extension of skin between the 



front toes in all Ducks, Geese and Swans (and in certain other 



birds). 

 WING-COVERTS. See COVERTS. 



