A fly buzzing around. The thumps are the fly bumping into the wall and a lampshade. This file is dry, so there's some low-frequency garbage from my holding the mic and following the fly. A high pass at around 200hz fixes that. Feel free to use this for whatever you want. 100% public domain.
An airplane passing very close by. Recorded outside my uncle's house, which is located near an airport in londrina, paraná, brazil. Recorded with a zoom h4n portable recorder.
I live near a rural airport. Small-engine plane flying by. Distant sound, not close up. I left a lot of ambience on the front and back end so you can choose when to fade in and out.
Simulated wing flaps of a bird or other creature created by waving a heavy bath towel and then speeding it up and adding a bit of eq. Recorded with a sterling audio st51 condenser mic. This is a duplicate of http://www. Freesound. Org/samplesviewsingle. Php?id=71417 which may cause issues because of a missing wav header in the original.