LIST OF ILLUSTRATIONS. 



Page. 



Pl ite 1 fig. 1 .—Palatal surface of Caprimulgus europaeus 120 



2.— Palatal surface of Chordeiles virginianus virginianus 120 



2, fig. 1.— Palatal surface of Antrostomus carolinensis 120 



2 —Palatal surface of Setoclialcis vocifera vocifera 120 



3 —Breeding ranges of the subspecies of Chordeiles virginianus 120 



4.-Breeding ranges of the Central American and North American sub- 120 



species of Chordeiles acutipennis V ;.V ' 'i '.■, " Jon 



5.— Breeding ranges of the South American subspecies of Chordeiles l^u 



u acutipennis ; " 



k 6.— Breeding ranges of the subspecies of ChordeHes rupestns i^iJ 



VII 



