Do you see it?
 
 
In all fairness, only the top of the creeper's back is visible above. The following photo shows the brown creeper at a better angle.
 
 
The brown creeper is a small bird that I only noticed by coincidence: Various species of birds were flying and landing or landing and flying in a section of forest. I managed to focus on this particular one, who turned out to be a creeper (characterized by excellent camouflage and a long, curved bill).
 
 
Photo note: I used a Pentax *istD, with the SMC 400-600mm reflex lens, probably at the 400mm end. The photos were taken on 19 November 2004.