Well, I resisted.
I was at my favorite Stockholm market and managed to soldier by the
dry-aged beef and found, instead, dry-aged
ptarmagin. However, "dry-aged" is the wrong term for wild birds. No, these ptarmagin were, well, "well-hung":

Even raw these ptarmagin had the hard-to-miss funk of aged wild game. On top of that, though, they also had a faint smell of thyme which apparently is due to their diet.
On the way out I noticed a bowl of this year's harvest of
vendace caviar. Vendace caviar is a delicacy year-round here in Sweden. However, it's even more so when during its short season and available fresh and never-frozen. I ended up buying about 3 ounces:


Once home, I made a quick appetizer of the caviar.
Ingredients:

Creme fraiche, red onion, vendace caviar, dill, potatoes and a lemon
I started by grating the potatoes and squeezing out their excess water. I then fried a layer of potatoes in a mixture of butter and oil:

I then served the hot pancake with the caviar, a sprinkle of diced red onion, chopped dill, a healthy dab of creme fraiche, a little lemon juice and black pepper:

Wonderful stuff. The fresh caviar is firmer and not as salty as the frozen stuff. Honestly, the potato pancake is overkill and fresh vendace caviar is probably best served simply with the onion, dill and creme fraiche.
Appetizer out of the way, it was time for the ptarmagin. The ingredients (basically):

Potatoes, the ptarmagin, one root of celeriac, butter, milk and brussel sprouts.
I started by cubing about half of the celeriac and boiling it in salted water. I added the peeled potatoes to the pot after the celeriac had boiled for about 5 minutes. I then briefly blanched the brussel sprouts.
I didn't really want to mess with the natural flavors of the ptarmagin so I simply smeared them with butter and salted and peppered:

The birds went into a hot oven (450 degrees) for about 15 minutes. As they roasted, I riced the cooked potatoes and celeriac before mixing them with butter, creme fraiche, a little milk and salt and pepper. The brussel sprouts ended up in a pan with butter, salt and pepper and a healthy (2 teaspoons) pinch of sugar.
The finished ptarmagin got a long (10 minute) rest...

... before carving:


The legs and carcasses were saved and thrown in the freezer to make a future soup out of.
The served dish:

The ptarmagins tasted wonderfuly wild and "hung". Some bites were liver-like and even slightly bitter, others mild and tender. The more well-done meat was noticably tougher and I'll probably roast my next ptarmagin for only about 12 minutes. All of the meat had a distinct herby and thyme-like flavor. The lightly sweet and carmelized brussel sprouts were a wondeful accompaniment.
Their wonderful flavor aside, I ended up with a few bits of solid evidence that these were, in fact, wild birds: