Yesterday when I checked the goose flock near work all I could find was the 2 Barnacle Geese (but there weren't many geese there - many more evidently arrived soon after, judging from the report of 10,000 in the early afternoon).
I returned today and found a lot more geese, though many were out of sight from my view point. A single Barnacle Goose and an Icelandic Greylag Goose were all I could pick out on the first scan but then the pair of Barnacle Geese flew in. A more careful look revealed a party of 4 Tundra Bean Geese and then before I left a fifth Tundra Bean Goose appeared. Although bigger numbers were present today it was nowhere near 10,000. As I drove off I noticed a huge flock in the distance getting up from a field that is out of view from any road - maybe that's where the rest have been getting?