if the break is not too severe, meaning over 3/4 of the way threw you may have a chance of splinting her back together, take a piece of clothes hanger about 4-6 inches . brace the branch up , take the splint and place it on the brach , take some twine like hemp twine or that brown twine and wrap it all the way down the length of your splint lika an ace bandage ,
wet the twine and in a couple of days you will know if it was sucessful keep the branch braced and straight, 50/50 chance of survival if it stays alive in 2 weeks remove the splint but keep it braced for another week or so sorry so long but this does work 50/50