"...And this is where things get really dangerous," mutters Philemon, his eyes darting every direction as he quietly scans the area for signs of danger. He sniffs the wind, gestures for quiet, and listens as well, taking his time to really get a feel for what threats might be around the farmhouse. "Please wait here, but keep me in sight and come if I call. I'm going to search the outskirts and see if I can find any tracks of what might be in there..." Then the outdoorsman draws his bow and an arrow before slowly and cautiously making a circuit of the farm, looking for signs of any creatures passing back and forth. He won't go so far that he cannot look back and see the party, but he's comfortable taking his time and seeing the whole area otherwise.

Spoiler: Mechanics
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Perception - take 20 if allowed for a 25. If not possible, (1d20+5)[14].
Same thing with Survival, taking as long as necessary and supported by the other PCs - 25 or (1d20+5)[18].