Page 126
|
Black-crowned Night Heron.
Yellow-crowned Heron.
202. Black-crowned Night Heron.
Nycticorax nycticorax naevius.
Range.--North America from southern British
Provinces, southward; winters along the Gulf
coast and beyond.
Pale bluish green.
A well known bird, often called "quawk" from
the sound of its note frequently heard in the evening.
While, in some localities, only a few pairs
of these birds are found nesting together, most
of them gather together into large colonies during
the breeding season. In New England they
generally select a remote pine grove as their
breeding grounds. If not disturbed they will return
to this same place each year. Their nests
are built of sticks and lined with small twigs,
and are placed well up towards the tops of the
trees.
Frequently several nests will be found in the
same tree, and I have counted as many as fifty
nests in view at the same time. In large swamps
in the south they generally nest at a low elevation,
while in the marshes of Wisconsin and Minnesota, large colonies of them
nest on the ground, making their nest of rushes. Like all Heronries, those of
this species have a nauseating odor, from the remains of decayed fish, etc.,
which are strewn around the bases of the trees. Their eggs number from three
to five and are of a pale bluish green color. Size 2.00 × 1.40. Data.--Uxbridge,
Mass., May 30, 1898. 4 eggs. Nest of sticks, about thirty feet up in a pine tree.
Many other nests. Collector, H. A. Smith.
203. Yellow-crowned Night Heron. Nyctanassa violacea.
Range.--Sub-tropical America, breeding along the Gulf coast and to Lower
California; casually farther north, to Illinois and South Carolina.
A handsome grayish colored species, with long lanceolate plumes on the
back, and two or three fine white plumes from the back of the head, like those
of the Black-crowned species. Its black head, with tawny white crown and ear
coverts, renders it unmistakable. This species nests in colonies or by pairs,
like the preceding, and very often in company with other Herons. They lay
from three to six eggs, very similar in size, shape and color to those of the
Black-crowned Heron.
|
|