Hello my little buckle her beaks are straight but top beak is longer and curves (which we try to keep files down) and bottom beak is much smaller in length then the top beak. You said you feed your bird by feeding tube. How do you do this and how often do you do this
Kathy
Can you post a picture? Feeding tube isn't too difficult to do but I think personally would be traumatic daily for you and the chicken. When my cross beak ripped the outside of her top beak off we did a feeding tube with baby bird formula and unflavored pedialyte twice daily for maybe a week my partner would hold her wrapped in a towel with one hand around her neck. I got a red rubber catheter size 8 I think and lubricated it with olive oil. Held her head back and (because her mouth is always open I didn't have to do that) slid the tube down the right side of her throat (her right). I also tube fed our sick rooster and sometimes it took both of us to open his beak but once it was open I held it open and onto the top beak. I usually did 2 35 cc syringes each time (they were both full grown) until their crops felt full. I would try to find a way for her to eat on her own though either with a deep dish, crumbles or wet mash like I make for my cross beak. It was stressful for me to do the feeding tube mentally. They didn't like it so I felt bad. My cross beaks beak heed enough where she would dip it in food again so we could stop tubing her and unfortunately we had to euthanize our rooster as he didn't respond to treatment. Maybe supplement with tube feeding until she gets the hang of eating. They are amazingly adaptable and I'm sure could learn to eat.
*tips.... if your doing more than one syringe of food/formula (I was never able to get chicken feed thin enough to pass through and made the formula as think as possible to pass through the tube) have it all ready to go and set up before you pass the tube
Also I'm not sure if it was actually helpful or not but I would tear a little piece of cotton off a cotton ball to hold in front of the tube when it was placed to make sure no air was passing through it. Not sure it would even move if it was actually in the lung but it made me feel better sometimes my boyfriend said he could feel the tube in the crop.
Also measure from the beak to the crop on the outside of the bird so you have an idea how much should be sticking out when you're in there.
Good luck!! Keep us posted