Hmm...hard to find an exact match - we are looking in a section called - Chamiceros (our guide is in spanish) which includes genuses such as Synallaxis, Hellmayrea, Cranioleuca, and Certhiaxis. We belive it is either - Certhiaxis mustelinus (better coloring match but no crest) or Cranioleuca hellmayri (crest by seems grayer in the guide). It is possible, since ours is a Colombian guide - that it is another species in this grouping, that you will find in your Suriname specific guide.

Thanks for the fun contest! We are still getting better at this, and it takes practice! Let us know the real answer when you find it ;)