Note 5 — THE BIRD-BERGS OF LAPLAND.
Margaret R. Thomson translation
[Note 5] p. 59.—Altrices and Præcoces.
Altrices or nidicolæ are those birds which are more or less helpless when hatched. They are often blind and naked, and unable to leave the nest. The food-yolk has been mostly or wholly used up before birth, and the young depend on what their parents bring them. Examples are doves, hawks, and passerine birds.
Præcoces or nidifugæ are those birds which are more or less able to run about when hatched. They are born with their eyes open, with a covering of down, and with much of their yolk still unused. Examples are running birds, fowl, gulls, and ducks.