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Vocabulary Crossword: Lesson 6

Across
The small pocket of air between the inner and outer shell membrane (TWO WORDS)
What a male bird is doing when he tries to win a female bird, displaying bright colors and fancy flight.
The outside of an egg shell.
The yellow center of an egg, containing food for the embryo to consume while growing inside the egg.
This is when other birds assist the parent birds in raising their young. (TWO WORDS)
An __________ egg does not contain an embryo.
Birds are __________ when they are born without feathers and are born blind, completely dependent upon their parents for survival.
What birds are doing when two birds come together to produce eggs.
Down
This is what a bird is doing when the parent bird continues to sit upon the newly hatched birds to keep them warm.
This is the sharp notch on the top of a newborn bird's beak, enabling it to hatch out if its egg. (TWO WORDS)
The developing chick inside an egg.
The tiny circle that initially makes up the developing embryo in the egg. (TWO WORDS)
The white or clear part of an egg.
Birds are ___________ that are born with feathers and the ability to see and move about.
The ropey strands that anchor the yolk in place--usually visible in very fresh eggs.