ML646497347

觀察細節

Most of the 46 greater white-fronted geese that I saw where large with fairly dark to very dark plumage. Without taking measurements of the bills and tarsus, I can not determine how many where Tule geese. Even some of the hatch year (juvenile/immature) birds looked rather large. At least one of the birds in the flock was fairly small and pale and one of the attached photos of it next to a large darker bird provides a good comparison.