Rigging is one of hard part of animation because a rigger decide character body moment.In this video tutorial you all found how to rig a bird with use of maya software.
Rigging a bird with IK handles and curves
How-to (Website Category)
How to make realistic Snow in Blender
Watch this makingof realistic snow use of blender software, we all know that blender is a open software and work is awesome. This one of most useful tutorial is done by Blender Guru.