I didn't know where to put this but I wanted to show it as it is unusual. Some birds had a nest in the bushes. Cat got the mama. Both babies were big enough to perch and spent a day in the bushes while the father fed them. One got stronger and flew away. The other was being stalked by a cat named Horsey so my wife got the baby and put him in a parakeet cage on the porch. She brings the baby in and feeds it. Then she puts it back in the parakeet cage on the porch and leaves the door open. THEN, the father bird will fly to the cage and go inside and feed the baby. My wife and the father "take turns" it seems, feeding the baby. I've hand raised birds but I've never seen a wild bird actually come to his baby to feed it after a human has handled it and especially surprising is that he comes inside the parakeet cage to do it. My wife has a way with animals. I am living proof. I had made a sign for Horsey the cat but he ignored it.
UPDATE to the story. All of us men know that if a man is standing all alone in the forest and he says something, he is STILL wrong, according to his wife/gf. Well the woman's opinion is not limited to humans. As I said the father bird is actually coming into the cage and feeding the baby bird. My wife is still doing her alternate shift bringing the baby into the house and feeding it. WELL, the father bird brought something for the baby and accidentally dropped it. He left to get more food. I got what he dropped to see what he was feeding the baby. It was some sort of green seed. Not hard coated but definitely firm coated and soft inside. It was also large, almost the size of a white bean. I showed it to my wife and said, "This is what the father is bringing." She looked at it and went off in Cebuano like Mt. Vesuvius. Then English, still the erupting volcano, "This is too big. It's too hard. The father is crazy!!!!!!!! This baby cannot eat this. He kill the baby!!!!!!!!" Maybe I can get the bird to come in for a "sit down" so my wife can instruct him. Women, you can't live with them and you can't live with them. (not a typo)
I have seen a medium size Chicken swallow a fully grown Mouse WHOLE that I threw out after removing it from the trap...
I did more research and an American plastic surgeon agrees with you, depending on exact expression, but why in the world you go to a uk source for something scientific? Unless you count Dr. Who. That 26 and 60 is from when I was a kid before they had internet, or even computers. There were two sources of information and two answers. Ask your Mother first. Answer, "Go ask your Father". Then ask your Father. Answer, "Hell, I don't know. What the hell you want to know that for?" That was it. Yes, there was a time when everyone did not have a computer or cell phone..............."Believe It or Not"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!