this was a tiny one...and on the top of the window. I pulled up the step ladder, and balanced myself, with my camera in one hand and the speedlite in the other! Wow.....i saw her with her eggsac for the first time in the life.
Never have seen this before. I've seen a lot of pictures with an egg sack but you were really lucky! I would try to reduce the exposure a bit. It's too bright. But the composition / situation is great! Good catch Shan