Stray

Strays are an upcoming variation of skeletons that only appear in snowy biomes.

Spawning
Strays spawn in cold biome types, such as ice plains. Spiders spawned in cold biomes have a chance of having a stray riding it.

They may be manually spawned with the command and setting the SkeletonType datatag to 2.

Behavior
Strays behave much the same as normal skeletons do. However, they fire tipped arrows that inflict slowness for 30 seconds on any target that it hits. They are not immune to slowness. In every other aspect, they behave like normal Skeletons

Drops
In addition to normal skeleton drops, strays have a $1/2$ chance to drop a tipped arrow of Slowness. With Looting, this chance increases to $2×level+1/2×level+2$.