I need to get a high concentration of calories into my sick duckling. What is the most concentrated calories she can/will eat? Someone suggested bacon fat? Is that safe? I think sunflower seeds are high in oil, therefore fat. I have a large bag from last years sunflowers. If I ground those woud they be safe? I don't know if she is eating the grit I give her. I've been giving her scrambled eggs, and she really likes it. What else can I feed her?