This is a question asked by many pokemon fans. Many animals that would have been really nice to see in the series didn't make it to the series, example of this is the hummingbird. No one know exactly why hummingbird is not part of pokemon. It would be really cool and awesome to have hummingbird added to pokemon.
Let's keep our fingers crossed and hope the creators take this into consideration and come up with a hummingbird pokemon character.
This is actually one thing that a lot of Pokemon fans wonder about. There are different animals in this world that can be considered good inspiration for the next Pokemon characters. The Hummingbird is just one of those animals. it will not be hard to imagine how cute it would be. No one really knows why the makers of the series and even the games are taking too long to create one.
Perhaps they are still curating the perfect persona for the soon-to-be Hummingbird Pokemon. Some say that the Hummingbird may end up as a starting bid and it would evolve into something bigger. A lot of Pokemon fans will be looking forward to seeing one soon for sure.