112 ORNITHOLOGISTS' COMPENDIUM. 
T. 
Tail-cov'erts (L. tec'trkes-cauda'les), n. The most posterior feathers of 
the body, or those which immediately cover the basal portion of the 
tail. 
Tar'sal (L. tarsa'lis), a. Pertaining to the tarsus, so-called. 
Tar'sus (L.), n. In descriptive Ornithology, the leg of a bird, or that 
portion from the foot (that is, the toes) to the heel joint. (Plate 
XI.) 
Taw'ny (L. ful'vus; fuhes'cens; aluta'ceus; musteli'nus ; fusces'cens), a. 
The color of tanned leather. (Nearly synonymous with fulvous.) 
(Neutral orange -J- raw sienna.) (Plate V. fig. 1.) 
Taw'ny-ochra'ceous (L. ful'co-ochra'ceus), n. (Yellow ochre + burnt 
sienna + burnt umber.) (Plate V. fig. 4.) 
Taw'ny-Orive (L. ful'vo-oliva'ceus), n. (Yellow ochre + raw umber.) 
(Plate III. fig. 17.) 
Tax'idermist, n. A person who prepares and preserves the skins of 
animals, with the view to imitate their appearance in life. 
Taxid'ermy, n. The art of preparing and preserving the skins of animals 
so as to imitate the appearance of life. 
Taxonom'ic, a. Classificatory ; pertaining to taxonomy. 
Taxon'omy, n. Classification, according to scientific principles. 
Tec'trices (L.), n. Coverts, especially those of the wing. 
Tec/trices A'lae, . (L ) Wi erts . 
Tec trices Ala res, I 
Tec'trices Ala'res Inferio'res (L.), n. The under wing-coverts, or those 
of the under surface of the wing. 
Tec'trices Cau'dae (L.), n. Tail-coverts. 
Tec'trices Me'diae, ) .... . 
Tec'trices Perversa., $ < L -)> n ' The middIe ^mg-coverts. 
Teleolog'ical, a. Pertaining to teleology. A teleological character is a 
modification resulting from necessity of adaptation to particular ends. 
Thus, the naked head and other "vulturine" aspects of the Old 
World Vultures (belonging to the family Falconidce) and those of the 
New World (Cathartidce) are teleological, inasmuch as their mode 
of living necessitates in both certain modifications of external struc- 
ture fitting them to act the part of scavengers, their actual (morpho- 
logical) structure being very different. 
Teleorogy, n. The science or doctrine of adaptation. 
Tem'poral (L. temporalis), a. Pertaining to the temples. 
Tenuiros'tral (L. tenuiros'tris), a. Slender-billed. Pertaining to the 
obsolete group " Tenuirostres." 
