I did notice that Proaves published in print and online their article on 16 May. The second paper from 25 June was only published online as an individual PDF and was not incorporated in one printed or online edition. I think there is little doubt that the second paper was intentionally published, rightly or wrongly, to cause confusion and a mess.
QUOTE]
Without wishing to comment further on the ethics of this case (that
fenwickorum has priority is not, and never has been, in question), the above is not exactly an accurate representation.
Both
Conservacion Colombiana and
Ornitologia Colombiana are fundamentally online only, i.e. their existence as print journals is more or less solely to fulfill the demands of Art. 8.6 of the Code. The second description exists not just as an individual .pdf, but it has always formed part of an online issue, no. 9, of
Ornitologia Colombiana, available here
http://www.ornitologiacolombiana.org/revista.htm to this day. One of the five publicly accessible libraries (see Art. 8.6) in which copies of previous issues of both journals have been deposited to date is that of the Natural History Museum, Tring.