A very useful collection of different types of temporarily unidentified aerial objects can be found in the work of the relatively new Committee for Aerospace Phenomena Research (Comisión de Estudio de Fenómenos Aeroespaciales - CEFAe) https://www.faa.mil.ar/mision/cefae.html [Google Translation] The commission is headed by retired Commodore Ruben Lianza who posted here on Metabunk after we identified the likely aircraft behind the Chilean Navy UFO video. The committee has published two reports so far for 2015 and 2016. They are in Spanish, but are very well illustrated so the explanations for the phenomena are readily understandable. They cover a remarkable range of different phenomena - many of which we have seen before, but some new. Here's a quick sampling with translations from the 2016 report: A typical lens reflection photo: A bird UFO A flying disc that is just that: A very detailed analysis (14 pages!) was made of this seemingly simple blurred object The conclusion of which is "probably one or two balloons". The work of the commission seems very similar to what we do here in the Skydentify forum, and I'd encourage members to have a look at the detail in the two reports. CEFAe can be compared to their neighbors in Chile, CEFAA (who have been investigating the Navy Helicopter case - Caso Armada - for two years). CEFAA appears less focussed on publishing plausible explanations for cases, and more on describing cases they could not solve conclusively. I looked through their web site and could not find a similar collection of solved cases.