ok, then I guess I'd go jake. It's off to the side pretty far, that's why it looked like just part of the ground to me. Scale would help. But I'd go jake if that actually is part of the track.
To me, a heavier bird's toes would be more spread out than that in a track. The weight forces them out more (at least that's how it works in my crazy head).
I have measured my middle(birdie) finger against tracks that I saw toms make and what I found is:
From the big knuckle at the base of my finger to the tip of my finger is generally the same lenght as a toms track from his heel(center pad) to the tip of his toenail on his middle toe. Sometimes a jake track is this long but the toes are very skinny compared to a adult tom. The dot you see at the back off the track is from the claw on the back of the leg.