Quote: np... it may also be something as simple as a pulled muscle that will straighten out within a few weeks.. so basically just keep an eye on the bird and see how he does.. and monitor for any progress or indications that there will be an issue that needs intervention.. also make sure to check his body weight on occasion if you can (without damaging his leg further if that's even possible) since weight loss will also be an indicator of how he's doing.
Just keep in mind that birds can mask a lot of their symptoms which is why it's usually a "sudden" death when one does keel over.. they act fine one day then are dead the next from no apparent reason when in fact they had been ailing for quite some time.. they just hid it well..