`  == Bad opening sentence? ==  ``The Accipitridae, one of the two major families within the order Accipitriformes (the diurnal birds of prey), ...``  This is plainly not true.  It looks like someone has just replaced ``Falconiformes`` with ``Acciptriformes`` and not considered the effect on the meaning of the sentence.   I'm assuming that ``two major families`` refers to Falconidae and Accipitridae.  Obviously the Falconiformes are not members of Acciptriformes, and Acciptriformes is not synonymous with ``diurnal birds of prey``.   Ok, research in molecular genetics is going to cause revisions and controversy in classification, but we need to be careful when making wholesale replacements of one term with another non-equivalent term!   I'm going to try to reword that to recover its original meaning; I hope I don't put anyone's nose out of joint.`