These are weird, unusual birds, but there are usually several hanging around near one of the artificially created ponds in Terry Hershey park in Houston. They are found across North America and we do have them in the UK too.
I watched a family of them, parents sitting down doing nothing much, while their smaller, younger offspring pottered around on a nearby bank of the bayou.
This one let me get close; they’re used to humans hanging around. Now why do I want to call him or her Warty McWartface?