When I glanced out the back door a few days ago, I saw a nice fat robin pulling out worms. I told my husband "My robin is back!" For the last few years, there is often a robin in the same area of the yard. I assume it is the same robin. But then I wondered "Could that really be? How long do robins live?"
A quick internet seach told me two things: 1) I wasn't the only one who had wondered that and 2) it (robin lifespan) varies. Basically, if a robin makes it past the first year, which is hard to do, it will probably live for five or six years. So "my robin" may be the same robin who has lived near us the last few years.
For a quick and fascinating look at information about robins, go to http://www.learner.org/jnorth/search/RobinNotes2.html