428 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



surface smooth, and the form subelliptical. They measure 31.1 X 

 26.3, 31.6X 25.6 and 32.5 X 25.2 mm. 



Skutch (Joe. cit., p. 223) has noted that the young of kingfishers 

 and motmots in hatching break the shell irregularly near the large 

 end of the tgg so that the cap when finally removed is asymmetrical, 

 as it separates along an oblique line rather than on the usual transverse 

 fracture. He found also that young kingfishers may take one to 

 two days to emerge. 



Countrymen in speaking of these birds sometimes refer to them 

 as martin del rio, or shorten the name to martin. 



CHLOROCERYLE AMERICANA ISTHMICA (Goldman) : Green 

 Kingfisher, Martin Pescador Verde 



Figure 50 



Ceryle americana isthmica Goldman, Smithsonian Misc. Coll., vol. 56, no. 27, 

 December 1, 1911, p. 1. (Rio Indio, near Gatun, Canal Zone, Panama.) 



Small ; dark above, white below on throat and abdomen ; in flight, 

 showing the white of lower surface and in tail. 



Description. — Length 170-195 mm. Above, including side of head 

 and a narrow submalar streak, dark metallic bronze-green, blacker 

 on the forehead ; a white collar across hindneck ; scapular, inter- 

 scapular, and rump feathers with concealed white at base ; fore- 

 head and crown plain, or in some freckled with white ; wing coverts 

 plain, occasionally with small white spots; secondaries with three 

 lines of narrow spots and the concealed bases white; usually some 

 of the primaries with white spots on the outer web; central rectrices 

 dull bluish black ; outer pairs blackish spotted with white distally, 

 and with the bases extensively white ; malar region white, continuous 

 with the collar on the hindneck ; throat and upper foreneck buffy 

 white; lower foreneck and breast deep rufous to chestnut-rufous; 

 rest of under surface, including under wing coverts white, spotted 

 more or less with greenish black ; under tail coverts spotted in some, 

 in others plain. 



Adult female, like the male, but without rufous on the breast, this 

 area with a somewhat broken band of greenish black; another less 

 complete band of the same color across the lower breast; white of 

 under surface usually washed with buff. 



Young male, with rufous of chest band reduced in width, spotted 

 and banded, in some extensively, with greenish black. 



Iris dark brown ; base of gonys and anterior third of lower margin 



