The following blog post by Steve NG Howell is a gem:
Not long ago, in another thread, @armchair bushman and I were discussing our angst with species "splits" and "lumps" that were blindly based on genetic analysis.
In his excellent analysis, and in typical style, Steve savages the American Ornithologists' Union's North American Classification Committee - the "official" body that determines bird taxonomy and decides on species' names.
A few choice sections:
"The trend that spurred this commentary is the strong impression held by me and others that today’s AOU seems to use genetic data as a crutch. They are reluctant to take a step without it, and in the process appear crippled, or at least seriously handicapped. Not surprisingly, then, the AOU lags well behind most of the world’s other taxonomic bodies on the road to reality."
"If the AOU continues on a heading beguiled by genetics, I suspect that sooner or later most birders, including the ABA, may leave the taxonomically constipated NACC to play alone in their ivory tower."