Answer: sighting

AnswerCrossword Clue
SIGHTINGSpotting
SIGHTINGBirder's reward
sightingTake aim by looking through the sights of a gun
sightingTake a detailed visual measurement of something with or as with a sight
sightingManage to see or observe (someone or something); catch an initial glimpse of
sightingAdjust the sight of (a firearm or optical instrument)