I initially drew this when I thought the shots I took didn't really show what the actual bird looked like. Even if you zoomed in, it would be quite blurry. Of course you can always google and find a million better shots than mine.
Anyways, that's my take of the yellow-bellied sunbird. It looks kinda round and plump. You can take it as a cartoony cute version of the real thing.
Since the mummy sunbird only returns to the nest at night to sleep, it would have been impossible for me to get a good shot of that. So I thought why not draw it out, easier to explain.
Imagine the below as a cross section of the nest seen from the side, with the dotted lines to mark the space inside.
The drawing on the left is what I think is how the mummy sunbird slept, and prolly a week later, with the little eggs just below her.
The one on the right shows what would be her sleeping position after the birdies started hatching and growing and taking up space in the nest. Her body is pushed upwards because before, I could only see her head in the nest, with the beak sticking out. Now, I can see her body even without standing on the stool!
You must be thinking, poor babies, squashed by the mummy sunbird, not able to breathe. (>.<)