Mini...
Any time you can do or say something that could save someone the grief of a bird or animal strike you need to do it. The last thing I want to do is to fly through a flock of birds or worse. You're not going to give me any heartburn if you let the tower know what's going on. If you're flying out of an uncontrolled field, then I'd let it be known on the unicom frequency.
I had an experience about three years ago. We were departing Meacham Field in Fort Worth, Texas. It was an evening departure and we were deadheading to Houston to pick up some company people then on to Fort Lauderdale. Just prior to V1 something darted out in front of us. We felt a solid thump and aborted the takeoff and taxied back to the ramp. The tower controller had someone take a truck out on the runway to see if they could find out what we had struck. They found a 200 pound ferral pig lying dead right on the runway center line. We were extremely lucky, an animal that size, if we had hit it dead on, would have easily taken out our nose or main gear. As it was, he was hit by our nosewheel chine and we suffered no other damage. I spoke with the tower controller on the phone and he mentioned that they knew that there were pigs on the airport boundaries, but that they usually didn't get anywhere close to the runway. It could have been real ugly. (The contoller had to fill out a special form for the FAA. I had to wait a while while he tried to find it; but he couldn't find one so he simply took a "Bird Strike Report" and crossed out the word "Bird" and wrote "Pig". I guess that I'm probably the only person to have ever filed an FAA Pig Strike Report.)
I flew out of the Grand Canyon Airport for a few years back in the mid-70's. They had a real problem with dear on the runway near sunrise and sunset. Again, it was good to get those reports from the other pilots and the tower controllers.
'Sled