  Robin Nest Study What Can You Observe?  Image: Tom Grey  In
most North American locations, robins nest twice each year, and
three times in some places! Can you find some robin nests in
your neighborhood? How many are in trees, and how many are on
houses or other buildings?  Many bird books state that robins
build their first nest in a conifer, like a pine or spruce, and
their second and third nests in leafy trees. They say only the
female builds the nest and incubates the eggs, but both parents
search for nesting materials and feed the nestlings and
fledglings. Do the robins in your neighborhood follow these
"rules"? Try to keep track of the parents and their young for as
long as you can.  For each nest, answer as many of the following
questions as you can:    • How many eggs does the female lay?
• How many days does it take for them to hatch?   • How many
days does it take for the nestlings to leave the nest?   • How
many babies survive to fledge?   • If the babies didn't all
survive, could you figure ou