I think I generally operate on “it flies = flock”, “it swims = shoal”, and “it walks on land = herd”. There are exceptions, but that’s the broad approach
I would definitely recognise it and would not consider it weird if I heard someone say it, but I probably wouldn’t instinctively reach for it myself. That’s obviously just me though, not necessarily English speakers in general
I think I generally operate on “it flies = flock”, “it swims = shoal”, and “it walks on land = herd”. There are exceptions, but that’s the broad approach
Agreed, although I think a school of fish is also pretty broadly used, no?
I would definitely recognise it and would not consider it weird if I heard someone say it, but I probably wouldn’t instinctively reach for it myself. That’s obviously just me though, not necessarily English speakers in general