Wow, this is a really cool crossword puzzle. I rarely see anything so cool in the papers. I would like to give you one piece of advice for solving crosswords. Even Google sometimes cannot help in solving some issues. When I encounter such a problem, then I use special services that help in solving crosswords. A great example of such a service is
https://crossword-solver.io/clue/wading-bird/. I couldn't finish one crossword puzzle for a very long time. Tried googling the answer but couldn't find anything. None of the suggested answers worked. Only this service helped me. I hope you won't have any more difficulties in solving crosswords. Good luck!