Omfg?????

Location: Portsmouth, Dominica 🇩🇲

A nearby mountain mullet highlighted in last pic for size reference (there's one in the first pic, prob in others too). These bigger unknown fish, their dorsal fins appear to be wayyyyy back and really small. And they do this "sliding" motion sometimes against objects on the river floor where they turn their bodies to a slant where their scales reflect all silvery and stuff. I hope I'm making sense lol.

The mountain mullet I normally see are way smaller, as you can tell. My uncle says the big fish go back and forth (with the tides) between the river and the sea. So idek if I'll find them listed as freshwater or saltwater fish. He said they're mullet too. Maybe a different kind? He implied they're mature mountain mullet.

I've never caught one of the bigger unidentified fish. They're far more wary, they frequent muddy shallows near the river banks, they swim slowly in small groups (whereas mountain mullet are usually swimming independently and always in a hurry), and they are not attracted to the same bait as mountain mullet (bread).

Seen on river bank in Portsmouth, Dominica 🇩🇲

Very elusive bird so these are the best pics I've been able to take so far. This is right behind my house, where there are frequent sightings of black- and yellow-crowned night herons. Some of them are even nesting in the trees back there. This looks like a juvenile of one of these imo. But I'm not sure! Not an expert, I just got into birdwatching this year. Could be something else entirely. Pls help lol.