I sat just the one time. I hear very well, so i was listening since I wasn't seeing much that caught my eye to draw except the tiny things like the ant carrying the piece of leaf.
I still have trouble with depth perception in getting proportions correct, and do "just some more here" with shading that it doesn't always get the light quite right to look 3D enough to me.
Drawings have an advantage over photos because the camera can only capture when the device's lens is told to get, which can be blurry or miss part of the whole picture, while when drawing you can take longer to capture as much detail as possible, go back and correct mistakes and improve upon it.
Photos have an advantage over photos of being able to capture a moment for later reference and do so much quicker then drawing that moment, which you might miss some action with your head down at a sketchpad instead of up with your eye looking through a lens.
1- It was ok drawing from the photo. The general shape and appearance of the bird was fine, but trying to get feathers to look lifelike and faces and heads the right proportions are always difficult for me.
2- I don't think there was anything in the photo that I didn't notice if I wasn't going to draw it and at this time I don't know if that would make a difference when nature journaling.