It’s November, in actuality, which implies that it’s likewise November in Animal Crossing: New Horizons (in the event that you keep your game synced to real time). That normally implies that there are new critters to get.
There’s no race to get any of them, as a large portion of them will stay for any longer than a month, yet ensure you give any new finds to Blathers to finish your Museum.
You can tell when you’ve gotten another animal in light of the fact that your character will shout “Yes!” before they state the bug or fish’s name.
You can likewise check in your Critterpedia to check whether you’ve given the bug fish or not.
On the off chance that you have, there will be a little owl symbol close to the critter name. (Note that these emblems won’t appear in case you’re on another person’s island.)