Nov 6 2008. Departmental Distribution, alternative name & IOC name ready:
Slate-throated and Spectacled Whitestart done and species 1-348. We need volunteers please to finish this. Once departmental distributions are ready we can begin flagging species.
 Eliminated Antartic Tern from the Checklist

The birds seen in July and Aug 2004 that originally was asigned to this species were probably South American Tern that strangely enough occurs in breeding plumage in Lima around this time of year and have been photographed and identified as such. Consequently, the species has been erased from the checklist.

 April 8, 2009: Spot-winged Antbird split to 3 species.
Split of Spot-winged Antbird. Published already by the Islers and accepted by SACC and two more species for the Peru list Humaita Antbird (Madre de Dios lowlands) and Brownish-headed Antbird (Cusco, Madre de Dios and Puno foothills.) I put foothill ssp intensa from Central Peru with Spot-winged Antbird for the time being, since the call seems quite similar. But it seems likely that there could be some song or secondary call differences between this foothill form and ssp subplumbea of the lowlands.
 April 8, 2009. Amigos birds uploaded
Inserted Alex Duran's list from Amigos (CICRA). 440 species.
 April 8, 2009: Bambooo Long-billed Gnatwren mystery. New form uploaded to list

I uploaded a form I call Bamboo Long-billed Gnatwren to the list.  Birds of Peru mentions ssp obscurus from dry mid Huallaga Valley from Santa Rosa (Ucayali) S to Junin - that has white tail spots - and then says "also is southern Ucayali and Madre de Dios, where may be more prevalent in bamboo"!
This does not sound right. How can the same form both be in dry valleys in Central Peru and humid rainforest in bamboo? Unless, it is one of those dry forest/bamboo specialists that do seasonal movements. The song described for oscurus fits perfectly what I recorded in the bamboo at Amigos last year.
Shall try to get recordings from Central Peru to compare. In any case the form seems different enough and species status is highly suspected.