I'm frustrated !!!

Sheena, I have learnt to get around the problem by using the snipping tool on Windows. You will find it on your list of app tiles. I 'snip' the photo when displayed in my file, save it, and it will then load onto GN in a few seconds. I assume it is a poorer quality image, but I cannot tell the difference.
I did try resizing, free, using picmonkey.com, which GN recommended, but it still took ages to load.

sheena that happens if your photo files are too big. You will have to resize them - my daughter taught me (obviously you have to be on the photo edit programme) to select 60% where it asks for resizing on the edit page so I don't have to worry about pixels or centimetres

I've two families of bluetit said and two of greattits and they're all fighting over the feeder.

I thought it was something else....jeez I have a dirty mind

You're so lucky to have been able to watch them grow. All the birds around here either build high or in the middle of the bramble bushes. Clever of the birds but annoying for people like me.