How old will a raven live

A wild raven was recorded living for 13 years and 4 months. Captive birds may live much longer, one captive individual was recorded to have lived 80 years and captives at the Tower of London in England live for 44 years or more. Probably most common ravens die during their first few years of life. (Boarman and Heinrich, 1999)
--SOURCE: http://animaldiversity.ummz.umich.edu/site/accounts/information/Corvus_corax.html

A Crow is a Raven's 1st cousin, and here's the skinny on them.

Most crows don't even live a year, having died in the egg or as nestlings. In my study population of American Crows in Ithaca, New York, just about half of the nests succeed in producing young. Of the young I band in the nest a week before fledging, about half are alive and with their parents the next year. Of course some have disappeared and not died, but that's a pretty good survival rate for birds anyway. Once they survive that first year they have a good chance of making it for several years more. None of my birds try to breed when they are one year old, and some are six years old and still helping their parents. Average age of first reproduction for females is 3.3 years, and males average 4.9 years. Breeders have about 93% yearly survival. My survival data (biased towards the short side by those that disappear) indicate that some crows should live to be 17 - 21 years old [note this is a change in the prediction from what I have had posted before Dec 1998, based on reanalysis of survival data]. The oldest known wild American Crow was 29 1/2 years old (see Dilling, 1988, Ontario Bird Banding Association Newsletter 33: 2-3.). The second oldest known, however, was only 14 years, 7 months (Clapp et al., 1983, Journal of Field Ornithology, 54(2): 123-137).

Thank you very much for your information. When I work out in the bush country in Alberta the ravens seem to be very large. I have wondered the age of these birds for quite some time.