The notoriously underpowered C-5 has had two "one and a half" (one was gone and one was vibrating so badly power had to be reduced) failures after birdstrikes. Both got around OK, but rather hairly. At Dover in the early 80s, wx about 200-1/2, one took multiple geese, the A/C got it around barely a few hundred feet in the air, established a short PAR landed after being told, "too low for safe approach". One of two peacetime DFCs, I personally know.
The other at Westover, same scenario, double semi-failure during flap retraction, managed to land. Bad news was the nearly 200,000 pounds of munitions on-board. Got to close the dumps nearby the field. Good drivers, both, lucky too.
GF