Your first bird photo looks like a Gallinule, probably a juvenile.
Your second photo resembles a duck. If it looks like a duck,
well it's probably a duck. It's black, or very nearly black so I'm
thinking gothic duck. Well, maybe not exactly gothic, but certainly
black ... a Black Duck? Maybe a Pacific Black Duck?
Oh ya, you requested advise from someone on this forum that is
an expert at bird ID. I should have restrained myself better and
let anyone else have a go.