In article ,
a wrote:

Once, at general aviation speeds, we saw a flock of what seemed to be
canada geese at constant bearing out our windscreen. Sailers say
"Constant bearing means collision". We saw them with enough seconds in
hand to reduce our rate of climb and got under them.

Going under birds isn't advised, since when spooked, they often will
dive for the ground. Much safer to go over them, since their rate of
climb isn't that fast.

John
--
John Clear - http://www.clear-prop.org/