How to train chicken to climb ladder

[opps00]

How do you train a chicken to climb a ladder. I made a ladder for my new coop from the ground to its nesting box because I don't think it can jump that high without wings. I have 2 small 12 week old chickens and they can climb the aldder perfectly but the older chicken just can't. Ive put treats for her at the top but she just doesnt climb. Please help thanks

 

[Horsewell]

Try putting the chickens onto the ladder and put treats at the top. Maybe they will think its not so bad and climb up.