Authors: The Old Man and the Sea?

Questions

what was the name of the horse who reputedly could do arithmetic?

a carrier pigeon who served in wwi, who stopped an american bombardment of american troops, cher ami, is now on permanant display where?

famous dog who starred in 'where the north begins', 'clash of the wolves' and 'dogs of the regiment'.?

who was the first animalnaut?

in 1850, there were an estimated 9 billion of these in north america alone. in 1876, a colony twenty-eight miles long and more than three miles wide was observed. however, by 1910, it was extinct. what was this bird?