Josie intently watched the live tennis match and did not realize that a bird had landed on the adjacent empty seat next to her. her inability to notice the bird can be explained by:

Jose Was So Entertained He Zoned Out Everything Around Him And Had His Main Focus On What He Was Watching

I believe the answer is inattentional blindness.

inattentional blindness refers to a defect in vision that is caused by psychological lack of attention rather than actual damage in our visual system.

This tend to happen when we fail to process a certain stimulus because our brain is busy processing another stimulus.