GLOSSARY 



OF TECHNICAL TERMS USED IN THE PRECEDING 

 DESCRIPTIONS. 



MEASUREMENTS. 



LENGTH. Distance between the tip of the bill and the end of the longest 



tail feather. 

 EXTENT. Distance between the tips of the outspread wings. 

 LENGTH OF WING. Distance from the carpal angle formed at the bend 



of the wing to the end of the longest primary. 

 LENGTH OF TAIL. Distance from the roots of the tail-feathers to the 



end of the longest one. 

 LENGTH OF BILL. From the tip of the upper mandible to the point 



where it meets the feathers of the forehead. 

 LENGTH OF TARSUS. Distance from the point where the tarsus joins 



the leg above to the point where it joins the middle toe below. 

 LEMGTH OF TOES, Distance from the point last indicated along the top 



to the root of the claw. 

 LENGTH OF CLAWS. Distance in a straight line from the point last 



indicated to the tip of the claw, 



ABERRANT, Deviating from ordinary character. 



ACUMINATE. Tapering gradually to a point. 



ALBINISM. State of whiteness — complete or partial — arising from defici- 

 ency or entire lack of pigment in the skin and its appendages. 



ALULA. Little wing. The bastard wing, composed of the feathers which 

 are set on the so-called thumb, 



ATTENUATE, Slender and tapering toward a sharp point. 



AXILLARS. Elongated feathers on the sides of the body under the wings. 



B 



BAND OR BAR. Any color mark transverse to the long axis of the body, 

 BEND OF WING. Angle formed at carpus in the folded wing. 



