For anyone wondering, these are still around as of Feb 5. If you are just starting out and don't want to miss your snowy owl, a simple strategy is to level up until you can catch a Spawn of Onyxia (or level your Onyxia Whelping if you have it). At level 11/12, an Onyxia whelp can capture the Arcane Eyes near Karazhan (which always fight alone). Catch 2-3 Arcane Eyes to make fighting the Snowy Owl (and the 2 pets that spawn with it) a piece of cake.
For anyone wondering, these are still around as of Feb 5. If you are just starting out and don't want to miss your snowy owl, a simple strategy is to level up until you can catch a Spawn of Onyxia (or level your Onyxia Whelping if you have it). At level 11/12, an Onyxia whelp can capture the Arcane Eyes near Karazhan (which always fight alone). Catch 2-3 Arcane Eyes to make fighting the Snowy Owl (and the 2 pets that spawn with it) a piece of cake.