I agree with Scott, you should be weighing her each day for the next week or two, just to make sure that she's not losing weight and that her weight is stable again, because you can't always tell, and if she's losing even 1 gram a day, each day, then that means that she's not eating what she should be...
The digital kitchen scales are great for weighing birds and are extremely accurate in grams or whatever unit you want to use (grams are best for comparison)...Just find a container you can put her inside of, put it on the scale empty, weigh it, and then either hit "Tare" and then put her inside of the container and read her weight, or if you have issues getting her inside of the container while it's on the scale, then just weigh the container, write down how many grams it weighs, then remove it from the scale, put her inside it, and then put her and the container on the scale, get the weight, and subtract the weight of the empty container to get her weight...Whatever works for you...
Also, it's best to weigh her first thing each morning, right AFTER she has her first poop but BEFORE she eats anything...That way you're getting the most accurate body-weight for her you can...And then write it down each day and compare, and if she is continually weighing less each day then she's still not eating correctly...