Not at workplace, but here's a story of finding a bird in an unexpected place.
We'd been house-shopping for a while, finally found one in a great location, albeit at a not-so-great price: quiet street, by a lake, park with hills and trails, good public school system. House itself had a few issues, mostly fixable. There was a swimming pool in the back yard, about which we had divided opinions: I saw it as an expense and a safety hazard for toddlers, my wife was thrilled. But the house had been empty for a while and the pool was covered, and the owner refused our request to uncover it and check that the pumps etc still worked. Long story short, we bought the house, at significantly less than the asking price, and moved in over the winter.
Finally, spring rolls around, and it's time to find out whether we've got a pool, or an extreme roller-skating park. The pool cover is held on by a few dozen straps anchored to bolts in the concrete deck. I unbolt a dozen straps at the shallow end of the pool, and fold back the cover to let some light inside, just to see how bad things might be. There's a two-foot tear in the pool cover near the deep end, so in addition to things like cracked concrete and fallen tiles I'm fearing rotted leaves, dead frogs, maybe a snake or two.
I was definitely NOT expecting a full-sized hawk to come barreling out from under the cover, missing my head by inches. I don't know how long it had been down there, but I'm pretty sure it would not have gotten out on its own.