Hello @ el-nailul, how touching and encouraging your story, the chick is still alive?

I like that people are interested in nature, I'm from Venezuela and live in a rural area so since I was a child I have known how to appreciate nature and its diversity, I was researching something about intoxication in birds. and I got with this page http://www.infoexoticos.com/intoxicaciones-en-aves/

I hope it helps.

Zinc poisoning: is mainly caused by birds' access to galvanized metal (such as the frequently used homemade mesh cages) and coins. Although many low-quality cages and toys are made from brass (copper alloy and zinc) they are also the cause of zinc poisoning. Zinc is an essential element in the metabolism of the bird but its excess can produce alterations in the function of the exocrine pancreas. It causes effects at digestive level, reproductive (decrease in egg laying), abnormal molts and hemolytic anemias (studied in Amazonas ventralis by Litte and Smith in 1998).

is interesting because according to the page it says that zinc is part of your metabolism but excess can be harmful.

but your cunning beat a vet, I would have thought to use lemon or some acid but diluted to counteract the action of oxide.

Thank you for sharing this publication, this very nice bird I hope will recover.