Days 17-21: Happy Birthday!
Day 17: The beak turns towards
the air cell.
Day 18-19: The beak breaks
through the inner shell membrane.
Day 18-19: The lungs begin
Day 19: The yolk sac begins
to enter the body cavity.
Day 20: The lungs are
using the air cell for breathing completely.
Day 20: The embryo occupies all
of the egg except air cell.
Day 21: The neck begins to
Day 21: The egg tooth pips
through the shell.
Day 21: Exhausted and wet - but
alive - the chick has hatched!
What Do I Look Like Today?
Focus On: Those Funny Chicks
Today we will look at different breeds of chicks
and chickens. The color of the chick depends upon
the characteristics of its parents. (Remember Day 6 and Day 7?) Different breeds of
chickens produce differently colored and feathered
The first link gives some pictures of baby
chicks with references to more photos; the second
goes to one of our online resources - a paper
illustrating dozens of varieties of chickens.
The image to the right is courtesy of Linda Brenner and comes from FeatherSite,
"an on-line zoological garden of domestic
poultry". FeatherSite has its own excellent baby
chick page, with more varieties than are
found in our pages. For information on how to raise the chicks in a
proper environment, see Barry Koffler's Raising Chicks... Without Their Mom page.
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