Sandpiper wrote:
PhosphorusDecree wrote:
Aha, so it's "already", not "still"....
Yes.
"Summer" and "winter" are not really very accurate terms when describing the different plumages carried by birds at different times of the year. Many birds will have moulted into "winter" plumage well before the end of summer and many will have moulted into their "summer" plumage before the end of winter. The terms summer and winter also cause a lot of confusion with birds that migrate between the two hemispheres.
"Breeding" and "non-breeding" are perhaps a little better for casual use but still aren't entirely accurate as many birds have very complex moult strategies where different feather tracts are moulted at different times of year.
The Humphrey–Parkes system was designed to get around these problems but not many people tend to use it except for serious scientific study. I'm a bit lazy and tend to default to terms such as breeding, non breeding, sub-adult.
https://en.wikipedia.org/wiki/Humphrey%E2%80%93Parkes_terminologyThat's useful- thank you! So black-headed gulls are named for their
alternate plumage. I've often thought they should be called something like "Earbudded Gulls" instead...
Aside from another heron, I encountered a local duck celebrity today. As I was eating lunch down by the lake, two seperate passing groups of teenagers pointed at a duck and said- "Hey, isn't that Long Boy? Yes it is, it's Long Boy!" The duck in question was very long and skinny, mottled dark brown, and walked around in a bolt-upright posture the way some domestic duck breeds do. I wonder if Long Boy's a farm duck gone feral?
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