It looks like a Marigold to me and you may find this useful
Winged Wisdom Pet Bird Magazine - Kitchen Physician XI - Edible Flowers For Parrots
Pic number 4 is adorable! Glad he was open to trying it. I've never seen edible flowers before where I am, I wonder how Kiwi would like one? He's tried eating flowers my husband has bought me before, but I didn't know if they were safe and stopped him.