Egg tooth A small horny growth at the tip of a chick's upper mandible used to break through the eggshell. This 'tooth' is lost within a few days of hatching. Search Bird Dictionary From Peter Weaver's Birdwatcher's Dictionary Copyright © 1981 by Peter Weaver
Search Bird Dictionary
From Peter Weaver's Birdwatcher's Dictionary Copyright © 1981 by Peter Weaver