How do I encourage my bird to whistle?

Just a second ago I was blowing my sister’s little plastic whistle thing because she did it and my cockatiel liked it (Heart wings, sooo cute!) Anyways, he did the COOLEST whistle ever! It sounded like a wild bird. I’ve never heard him do anything like it! He did it 2 times, but I couldn’t get him to do it again. How do I encourage him to do these different whistles. He does the wolf whistle every day when I get home from school. And sometimes he will do the charge! whistle (well, his version but I want him to do that more and this one. He is a really quiet bird, but he does go into his modes where he just keeps on wistling, generally the wolf whistle over and over and over (and it makes me laugh every time), I do want him to do the other ones tho.

repetition repotition but not too much it will eventually get annoying to them

“The Whimsical Adventures of Drunk Bitch” – 24 Hour Film

Alessi Replacement Bird Whistle for 9093 Michael Graves Kettle $10.99 One replacement bird whistle for ALESSI Michael Graves kettle item # 9093 NOT suitable for other kettles e.g. Target brand…

Alessi Michael Graves Kettle with Small Bird Shaped Whistle Designed by architect Michael Graves in 1985, this kettle is the first of a group of products designed in the 80’s and 90’s by the architect. This was the first group of products by an American designer to be included in the Alessi catalog. It opened the way for the playful design style that subsequently characterized the 90’s, and thanks to an inspired mix of post-modern and pop idioms, it has be…

Michael Graves 52.5 oz. Electric Kettle MG32AZ/USA Color: Blue Features: -Material: Stainless Steel.-Cordless, electric kettle.-Boils water quickly and safely.-With light blue thermoplastic resin handle and base.-Capacity: 52.5 oz.. Color/Finish: -White color. Dimensions: -Dimensions: 10.8” H x 10.2” W….

Bird Warblers – 1 Dozen $5.55 Whistle away worries and maybe attract a bird or two in the meanwhile with these bright and colorful bird warblers. These whistles just need to be filled with water and then blown into to really create a fun time with the kids. Priced to sell…

12 bird warblers – warbling bird whistles $0.01 Made of hard plastic. Assorted colors. Size 2 ½” T…