If the roosters generally mate her, then you may want to move her to a cage within the coop/run during the day so she can rest and recover. The last thing you want is them to be mounting her while she's injured. Though they may be gentle, some roosters will take advantage of a hen that can't readily get away too fast.
It doesn't look like mating injury, but you may want to check to make sure the Silkies' spurs and toenails are not too sharp too.
I'm not saying this is from the roosters - usually damage from an accidental slice from spur is along the body, not the wing like that - just giving a tip about spurs and toenails, since I've dealt with injury from those too (accidental of course, a nail or spur just happens to gouge the hen).
It doesn't look like mating injury, but you may want to check to make sure the Silkies' spurs and toenails are not too sharp too.
I'm not saying this is from the roosters - usually damage from an accidental slice from spur is along the body, not the wing like that - just giving a tip about spurs and toenails, since I've dealt with injury from those too (accidental of course, a nail or spur just happens to gouge the hen).
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