Immature birds look somewhat like a Bittern, but the Bittern is a bird of the ground, rarely alighting in trees, whereas the Night Heron, after being frightened from a retreat along the shore, usually alights on a high branch.
Night Herons sometimes circle over the water, snatching their food from the surface, like gulls. As a rule, such activities are noted only during the nesting season, however, when the young have to be fed. When there are no family duties, they prefer to hunt at night.
The heavy bill and habit of perching with neck drawn in gives the bird a characteristic appearance at a distance.
The nesting colony, while interesting to the bird-student, is offensively filthy and has a disagreeable odor. The young, when newly hatched, give forth a peculiar, chuckling peep which has a somewhat ventriloquistic quality. As they develop they clamber about the branches, using their necks, wings, and bills in crawling from perch to perch.
KING RAIL
Rallus elegans elegans Audubon
Description.—The largest of our rails, about the size of a crow, but with slenderer body; sexes similar. Upperparts dark brown, feathers of the back and scapulars widely margined with olive-gray; wings and tail olive-brown; throat and areas in front of and above eye, white; neck and breast rich reddish brown, much like the breast of a robin; sides and flanks dark brown, or blackish, sharply and widely barred with white; bill dull reddish yellow, tipped with black; feet dull reddish; eyes bright red. Immature birds are darker and less handsomely marked. Length: 15 inches.
Range in Pennsylvania.—A rare, local migrant, probably occasional as a summer resident. It nests only in marshy sections. Nesting records are very desirable. It is to be found from April 15 to mid-September.
The King Rail, though a rather large bird, is so rare and retiring that it is rarely seen, and Pennsylvania records are few. It has been noted chiefly in the less mountainous counties and is apparently commoner in the fall, when the gunners sometimes take the bird. King Rails are weak fliers; sometimes they drop exhausted in the middle of a city and residents are startled at seeing a queer bird on the streets.
VIRGINIA RAIL
Rallus virginianus Linnæus
Description.—Size of robin; sexes similar. Upperparts dark brown or black, the feathers edged with olive-brown or gray; wings and tail dark brown, reddish brown on coverts; forepart of superciliary line and throat, white; cheeks grayish; underparts reddish brown, save on flanks and under tail-coverts which are black or dark gray, sharply barred with white; bill and feet reddish; eyes red. Immature birds are darker throughout and the red-brown of the underparts is replaced by blackish, mixed with white. Length: 9½ inches.
Range in Pennsylvania.—A fairly regular but local summer resident, sometimes common, from April 15 to September 30. It nests only in marshy situations, where it lives among cat-tails or other aquatic vegetation.
Nest.—Of cat-tail leaves or grasses, made in a cup, placed at the base of water-plants on the ground, or a short distance above the water, usually well sheltered from above, sometimes by a canopy of cat-tail leaves which has been arranged by the parents. Eggs: 6 to 11, buffy white, spotted with dark or reddish brown.
