Question:
I have historically had a keen eye for spotting the
presence of Robins in early Spring. I haven't documented the dates
but have taken pride in noticing the first day of observing my
first Robin and it has seemed that they are returning earlier in
Februrary. This early winter Dec 06, I noticed that the robins
seemed to stay rather than migrate. Throughout January I would
notice not just one or two but packs of 6-7 Robins in one place. I
also noticed that these Robins have been rather fat; some appearing
possibly pregnant. I have had bird feed out in the past but have
only shelled sunflower seed out at this time. The past two weeks
have been the coldest in Southwest Ohio this winter and the past
two days, I have found three dead Robins (two on my front porch and
one against the house in my back yard. Do you know what is going on?
Replies:
Some facts for addressing your request:
Birds do not get pregnant! They lay eggs. No, females do not
produce eggs until ready to lay them. They fluff thier feathers for
warmth and are well fed prior to migration.
Winter takes the most birds due to the weather related and travel
stress so older birds or unhealthy birds normally parish.
Many robins do not migrate and are around your area year around.
There are typically three migrations of robins. February is the
first group which often appear more orange in color. These nest more
northerly.
Robins in migration will eat seeds of many types.
ssample
Robins have a great sense of hearing. They use this to help them find
food. They also have decent vision. Combine these with the ability to
fly and it helps keep them safe from predators.
NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.