Apparently a crow has 15 primary wing feathers, and a raven has 16
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.so the difference between a crow and a raven is just a matter of a pinion
Well done that man!
I’ve got a Raven primary feather, they’re pretty big, 32cm compared to 27.5cm for a carrion crow.
I think starlings are a flock, like most birds, but frankly a collective noun two or more starlings should be a squabble, because two starlings will start a fight if they’re closer together than a couple of feet! Get twenty or thirty and it’s like Celtic v Rangers game fans at final whistle.