Attached is a .PDF on Managing Pet Bird Toxicosis from the ASPCA Animal Poison Control Center
In general, if our birds aren't displaying signs, they didn't ingest enough of the substance to make them sick, so continue to watch your bird closely.
Birds often destroy plants, but don't ingest them, so hopefully that's the case here.
The toxicity of pothos comes from it being an irritant, so that would likely manifest in not wanting to eat and provide ample time to get to a vet.