DOWO and RWBL missing in ML model (?)

[mkclapp]

When addressing the inconsistencies in 4-letter codes between ML and PC datasets, I noticed that the following birds in the PC dataset do not have corresponding entries in birds.txt (which I assume is an index of all the birds in the ML output/species the model is trained on):

DOWO (Downy Woodpecker)
RWBL (Red-winged Blackbird)

Both are rare on the landscape but have been detected in point count surveys. Not a huge deal, but just wanted to document the observation here so that we avoid confusion/frustration when interpreting occumodel output for those two species.

[mschulist]

If we have to retrain the model to add these species let's also do the following:

1. Add Pine Grosbeak (PIGR)
2. Brewer's Sparrow has a lot of false positives
3. It might be nice to be able to see the breakdown of random noises generated by humans and airplanes. This could be useful if we use H4N recordings.