A. FE. Verrill—The Bermuda Islands. 429 
bottom through the green sea-water. These birds nest in holes in 
the cliffs and are protected by law. They migrate to the south for 
the winter, and return in March. (See plate ]xxii.) 
Many small birds, which are numerous and tame, may be seen 
along the roadsides. Although there are only about twelve species 
of birds native to the islands, or which breed there, the numbers of 
individuals of several of them are large. The best singers of the 
native resident species are the Cardinal Bird (fig. 8), the Bluebird 
and the White-eyed Vireo (Part VI); but the Mocking Bird, 
English Goldfinch, American Goldfinch, the Wheatear, and other 
foreign birds have recently been introduced and are now naturalized 
there. (See Part III, ch. 34.) 
The Catbird is resident and abundant. It is as tame and auda- 
cious as with us (see Part VI). The English sparrow was introduced 
some years ago and is very abundant. The Bluebird is a larger and 
brighter variety than our northern one. (Fig. 9.) The same is true 
Figure 9.—The Bermuda Bluebird, from life. 
of the Cardinal Bird, of which the male is redder than the common 
American variety, and has a brighter red crest. (See Part VI.) 
The song of the Cardinal Bird is varied and agreeable, and it is said 
to change according to the season. The little Ground Dove is very 
tame and is often seen along the roadsides, or feeding in the roads. 
(Fig. 10.) The American Quail or Bobwhite is also now common, 
but the present race was introduced in recent times, about 1859, it 
