Silent Sorrow
May. 18th, 2020 08:35 pmSo, after last night's storm, I found a Robin's egg, apparently bounced out during the wind. It was broken - the break was on the bottom, where you couldn't see it until you picked it up.

Click to Embiggen
It was dead when I found it, the head-end cracked wide open, and the tiny right wing sticking out. Despite the blood still being liquid and the baby still flexible, it was stone cold, and entirely dead.

Click to Embiggen
In my capacity as Temporary Acting King of the Baby Birds, I appointed myself Temporary Acting Coroner of the Baby Birds, and set up office on the front step. Here the top of the egg is off. That's rather a lot of blood from such a tiny baby. I really should have weighed him in the shell, but didn't think of it in time.
You have a really good view of the chorion here, which is how the baby exchanges blood gases while he's in the shell. The wide end of the egg is the head end, and there's a sort of air space there for the chorion to interface with the air.

Click to Embiggen
The baby bird fully removed from the shell, with all the protective sacs removed. You can see how much of the yolk sac remains to be absorbed. He was two or three days from hatching, I think.
Note the internal bleeding just behind the eye. I have to think that happened in the tumble. He hit hard enough to break open the shell, after all. Even if I'd been there at the time, I really doubt that he could have been saved. Sad, but some things are like that.
Gruesome, but educational as well, especially if you've never seen one open.

Click to Embiggen
It was dead when I found it, the head-end cracked wide open, and the tiny right wing sticking out. Despite the blood still being liquid and the baby still flexible, it was stone cold, and entirely dead.

Click to Embiggen
In my capacity as Temporary Acting King of the Baby Birds, I appointed myself Temporary Acting Coroner of the Baby Birds, and set up office on the front step. Here the top of the egg is off. That's rather a lot of blood from such a tiny baby. I really should have weighed him in the shell, but didn't think of it in time.
You have a really good view of the chorion here, which is how the baby exchanges blood gases while he's in the shell. The wide end of the egg is the head end, and there's a sort of air space there for the chorion to interface with the air.

Click to Embiggen
The baby bird fully removed from the shell, with all the protective sacs removed. You can see how much of the yolk sac remains to be absorbed. He was two or three days from hatching, I think.
Note the internal bleeding just behind the eye. I have to think that happened in the tumble. He hit hard enough to break open the shell, after all. Even if I'd been there at the time, I really doubt that he could have been saved. Sad, but some things are like that.
Gruesome, but educational as well, especially if you've never seen one open.