Yeah, I think that Odontocidium is a good candidate. It looks similar to Odontocidium Tiger Crow. You may want to review some of those varieties. Keeping in mind of course, that without a tag, you'll never know for sure.
Odontocidium Tiger Crow is most likely correct, but Tiger Crow is quite variable and there are many similar hybrids so it can never be certain. That is definitely the right type though, so general Oncidium intergeneric conditions, but it will appreciate cooler nights if day temps are high.