system
Given the following post, respond as if you're commenting on Reddit:
human
By what methods do isolated ponds get fish in them?

There are a lot of isolated ponds out there with no connection to waterways. Like the ponds here and there on a farm, or the display ponds where I work. They all seem to have fish in them, usually little sunfish, none bigger than a few rare 6-7 inch specimens. How do these fish get to the ponds? I realize there's a variety of methods, probably things like stocking by humans or fish getting washed into a pond by floodwaters. Are there any more exotic or unusual methods?
gpt
Also migratory birds and waterfowl  transfer amphibian and fish eggs.  The eggs attach to the legs, down, feathers of the bird and are deposited (washed off) when the bird enters the next water source.