HI! I just pulled out the plastic insert of my bottom board because I am still seeing a few bees entering there. Odd. Note: I did not pull it fully out or look under. Should I?

I noticed one bee that looked grey in color with long wings and short abdomen. When it flew, it was faster. Is this an Africanized bee? Should I worry about this?

The entrance reducer is on to the 1-2 bee size. No bees are attacking. Things seem quiet otherwise.