[@RomanAria] I personally was under the assumption that it was simply a matter of avoiding using the colloquial term when choosing a particular bird and that bird must be a specific species, which was one half of the reason I made sure to state what particular type of hawk I was using in case someone also wished to use a hawk. At this point what this seems like to me is an issue of having more than one character with abilities that are too similar as hummingbirds as a whole are near indistinguishable in their abilities. 

If you do consider going for another species of bird, might I suggest something like a species of Bee-Eater? They're gorgeous to look at and are fast and skilled enough to hunt down things like dragonflies and wasps while flying through dense forest. It may not scream "great speed", but it definitely screams "great agility", which can actually be more useful than raw speed in some settings.