I've searched for half an hour. I have not seen another Murkrow, and at 5% doubt I will. I'm going to keep the baby in play because of the 5% encounter rate, which is not working in my favour. Meanwhile, I've caught everything to be found except for Landorus.
Still can't believe I found two in five encounters yesterday.
EDIT: I've called off the search. I still have to shower for today and I've spent an hour on the 3DS alone already preparing trades, entering FCs, and mostly searching for a Murkrow that isn't there. You can train a baby into the 30s very quickly by having it hold a Lucky Egg and starting battles against Lv.47-50 (or even Giant Chasm's Lv.55) Audinos, then switch to someone else to fight it. You can pick your moves too. Just keep doing this until it hits Lv.47 or 48 then it's like a fresh catch.
Shroomish and Zorua have been infected with Pokérus. I'm going to leave Houndour for now as it still didn't infect after three battles; however, as long as you have a Pokémon you want infected in your party along with an already infected Pokémon (right next to it), the infection will spread. This is only the one day strain, so whatever you do, do NOT keep an infected Pokémon outside your box if you want to retain the "disease"; make sure you have at least one or more in there that you will never use but for infection purposes. Make sure if you do take them out to return them before midnite local time or they will be cured and cannot be reinfected or further spread the disease.
Quick Ball is my technique, too; however, it hasn't been working in Abundant Shrine, and so far I only caught one in a Quick Ball. Murkrow turned into my first Timer Ball catch, I believe. I am the authority on Pokéballs available in Black/White and how to use them, but all these Apricorn ones in Soul Silver I still have to get used to (I asked for Moon Balls first so I can try to get a Clefairy!).
I will infect all four with Pokérus. I just have to put someone in charge of the babies at the head of the party and have a Pokérus infector elsewhere in the group. Should be a quick procedure. Trade list as in the prior VM, no changes other than adding Pokérus; I will however substitute a wild Murkrow which I will go to look for in about two minutes. The baby will be retained.
Well if you're still around and can infect them, sure!
I would prefer a wild Murkrow instead, if that's possible. And while we're talking catching, I use a Quick Ball on the first turn, works miracles. In the (very) rare occassions it does't work, I have my Clefable with Sing to put the wild Pokemon asleep. But Quick Balls are gold, you can buy them at Shopping Mall Nine, Opelucid City Poké Mart and Pokémon League Poké Mart. Just remember, Quick Balls work only on the first turn, so first thing in battle, after that they act like basic Pokeballs.