cute bird party:connect two birds

Group of cute birds flying friends, these single bird,.
you need to give them a pair! You all right?
Pairing method: crossed connections of the same color birds, can not overlap between each line.

When all the birds find their partner, after all, and the line to cover the entire grid.
then you complete the task it!
Seemingly simple, actually it is the test of mental and logical thinking,
Over 1000 levels waiting for you to challenge! So what.
come try broke into how much you can shut it!