INTRODUCTION. 33 
warm regions, and, like Petrels and Albatrosses, have little to 
do with the land. They are inhabitants of the Tropics, as also 
especially are some creatures constituting another very small 
Fig. 82. 

The Tropic-bird (Phaéton ethereus). 
Oceanic group, and known emphatically as ‘ Tropic-birds.” 
Of these we may name Phaéton ethereus as a type. They 
are powerful, but not graceful fliers, often accompanying 
D 
