Also, Texas has now taken over my #2 spot for biggest state list. That spot was held by Michigan, my longtime home state, but it was inevitable for a state like Texas to overtake it (and it's no surprise that California remains in my #1 spot).
Anyway, I went into openheatmap and created a map of Texas filled in with my eBird totals. You can see that I now have county lists for 58 Texan counties... but that's only 23% of the counties in the state! Clearly I have a lot more work in terms of spatial coverage!