What tartan is this?

[Phil]

Although not being able to speak to traditional Highland attitudes, I can say that hereabouts having a dried grouse, pheasant, duck, chicken, or any other foot attached to your clothes would certainly not be something thought to be feminine at all. I live in a very diverse country, so there may be regional and/or cultural exceptions, but generally speaking, animal parts (apart from fur coats) tend to be the domain of men.

Not to derail too much, but where did the grouse foot as jewelry trend begin ?

I actually first remember grouse claw brooches in touristy shops in Ireland back in the 1950's. Yes tourist tat was available even then. But they were always sold as ladies brooches, pinned on cards, and displayed next to other similar tat such as Connemara marble jewellery, shamrock and shillelaghs. But in those days the only kilt pins I can remember were of the large nappy (diaper for the sake of our transatlantic friends) pin variety. All the current Braveheart style swords etc were still to be invented.
I should add that there was no similar market for ladies fashion in the body parts of other animals apart from, perhaps, fox fur stoles and other furry creations. It was obviously never a fashion in your part of the world, hence the misguided perception that such brooches were a part of kilted fashion at any time. There is, of course, no reason whatsoever why anyone should not choose a grouse claw brooch or, indeed, any other type of ladies' jewellery to wear with their kilt. That is provided they realise that such an adornment has never been a feature of kilt-wearing in Scotland and they do so accordingly.