TROGONS. 



Fig. ii6. The Golden-headed Calurus {Calurus aurlcej>s). 



FAMILY I IF. 



THE TROGONS. TROGONID.^. 



General Characteristics. — Bill short, strong, sub-triangular, broader at the base 

 than elevated, with the tip and the margins generally toothed ; the gape furnished 

 with bristles ; the nostrils basal, lateral, more or less concealed by the ]5rojecting 

 feathers; the wings moderate and rounded, with tlie fourth and fifth quills usually 

 the longest ; the tail long and even, with the lateral feathers graduated ; the tarsi 

 short, and more or less covered with feathers; the toes placed two anteriorly and 

 two posteriorly, each pair unequal. 



