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external features alula (bastard wing) primary coverts primaries secondaries tertials upperwing greater coverts median coverts marginal (lesser) coverts underwing underwing coverts axillaries tibia (tibio-tarsus) foot leg bones femur ‘ankle’ (tarso-metatarsal joint) ‘knee’ (intertarsal-joint) h umerus radial carpal bone 1st digit (‘thumb’) carrying alula carpometacarpus (‘hand’)
The obvious quills are the pri- maries and secondaries (remiges) and the tail feathers (feetrices). On the basis of development, structure or behavior we might include here the greater primary coverts, the inverted secondary coverts on the. Vol. 1956 XXVII Blake, TOPOGRAPHY OF A BIRD [23.
Bird Topography. OrnithologyLab 1 - External Morphology & Topography of Birds. Be able to identify the following: THE HEAD forehead crown nape superciliary line (or supercilium) cere (what is the cere & which birds have one?) external nares eye ring lore iris ( sometimes change in color with age) nictitating membrane (see short video ...
A guide to the visible parts of a bird.
Vol. XXVII Blake, TOPOGRAPHY OF A BIRD [23 Most birds have the feathers springing from well-defined tracts (pterylae) separated by unfeathered areas (apteria). The latter may produce downs. Among passerine birds the apteria are usually dis-tinct and, hence, most pterylh can be satisfactorily delimited. This is not true of some other orders.
Topography is the description of the parts of a bird and their location.
The following is a list of terms used in bird topography: Plumage features [ edit ] External anatomy of a typical bird: 1 Beak, 2 Head, 3 Iris, 4 Pupil, 5 Mantle, 6 Lesser coverts, 7 Scapulars, 8 Coverts, 9 Tertials, 10 Rump , 11 Primaries , 12 Vent, 13 Thigh, 14 Tibio-tarsal articulation, 15 Tarsus, 16 Feet, 17 Tibia, 18 Belly, 19 ...
