Poor Hawk... :(

[Uchicha Macho]

dude no! He can summon both -_-" did you not see sai get his @ss shot down riding a bird? I'm pretty sure sasuke did.

this guy accurate

 

[Melanee]

That would kind of make the whole new Sannin generation pointless if he summoned a hawk. Not to mention Sai stated what they needed to do and Sasuke thought a snake would be perfect for what he told them. It's strategy.

 

[Fodder#4]

Screw the hawk! It was random and a plot device! Snake summoning Sasuke FTW