First and foremost: thanks for this review! I once did a book review and I must say I found it hard work. It's not easy to make a balanced comment on a field guide, when you have mixed feelings (happy it's on the market, a bit sad if you find obvious mistakes). Regarding the critique on the drawings, I find the Colombia guide an easy target: overall, the drawings in this guide look less sharp than the birds in the field. I would compare the drawing style to Van Perlo, but I have to admit, after using Van Perlo's Brazil guide, I found that Van Perlo guide actually very very usable. The main advantage of McMullan's guide is still its compactness, and the fact that it's taxonomically relatively very up-to-date thanks to the updates in the editions. Some field guides I really appreciate (like the Birds of Peru) are only updated every 10 years it seems, while McMullan has 3 editions in the last 10 years (approximately). I tend to see McMullan as a guide for those who have experience seeing S-American birds elsewhere (Brazil, Ecuador, Peru - Venezuela sadly still in deep trouble), but it's a difficult and confusing book when Colombia is your introduction into S-American birding, and you only have this book. For Flycatchers, I agree the drawings are very poor. Whenever I have to ID a Colombian flycatcher, I grab the Ecuador / C-America field guides (or even the ones from Peru and Brazil, especially for Amazonian birds). The antpittas are poor, too (do they still seem so unbalanced?), but they have the advantage of separating them by sound and range. Antbirds are poor and not very helpful, but again, sound is probably the best ID feature. Regarding Multicolored tanager: I have the first edition and the yellow back/neck is clearly visible, and the turqoise-blue uppertail coverts as well, so I do not understand that critique? I also don't see that many problems (I know I lowered the bar for the drawings in this guide when I say 'not that many'! )with the drawings of Black-and-white vs. White-winged becards: the color of the back (black vs grey). I have more problems with the drawings of hermits, parrotlets, piculets, greenlets, vireos, thrushes, wood warblers and especially woodcreepers... :-)