Do you guys think king mudbeard died of old age or was killed by birds?

if you didn't know king mudbeard aka Leonard was the father of the current pig king full name king smooth cheeks pig. the angry birds are an endangered family of birds because pigs were eating their eggs. the official guide said that mudbeard was s good king and ate all but 3 eggs which are the eggs Smooth Cheeks longs for.

do you think the story goes as in a fight of the last birds and king mudbeard the only birds left are the ones today?