Any guidelines on reflections?

Sometimes there is an entire reflection but sometimes there is only a partial reflection. Sometimes this happens because the bird is too close, sometimes it's because the framing wasn't right, sometimes it's a choice to get the bird as big in the frame as you can. Are there any guidelines people use to determine how much of a reflection is too much to include if the entire reflection wasn't captured? Thanks.

Barbara, I don't know if this is standard, but if I do not have the entire reflection, I set up my composition around the subject. I have just this issue with a Reddish Egret image with the reflection cut off at the bottom of the frame.

The only guideline I know is "work each situation as thoroughly as you can".

I love reflections. If the water is smooth enough to give you a good reflection, its a shame to cut off part the reflection. Even if the water isn't perfect, a whole reflection is usually an enhancement. If you cant get all of the reflection, you should compose the photo to de-emphasize it. i.e. cut off most of it. These are my own guidelines for avian reflections. Others may have different ideas.