But, never buy eggs.
Because of the way commercial hens are treated.
HENS AS PETS
POULTRY NEED FOOD, WATER, SHELTER, SPACE, COMPANY, ...
Hens are generally easier to look after than ducks.
Hens live about 9 years and ducks about 20 years.
If you want birds for pets then you could get yourself a couple of hens or bantams, and let them loose in your back yard, rather than lock some poor canary or budgerigar up in some little cage.
EGGS
If you want pure bred birds for eggs then buy top quality White Leghorn, Black Australorp, Rhode Island Red hens or Khaki Campbell ducks.Or, provide a good home for rescued battery hens.
They can lay 300 eggs per year when they are young.
And, fewer but larger eggs as they get older.
You can Download my Free Poultry As Pets Ebook, from:
https://www.smashwords.com/profile/view/LactoVegan
Lacto-Ovo-Vegan PDFs
You can download my PDF on How to Produce Healthy Milk and Wool Humanely and Sustainably from:
https://drive.google.com/file/d/1Kbh8Ys0cfeJ9UgkGIVGmOGnKA-6NbUcx/view
My, “Vegetarian Information Center Pamphlets”, PDF from:
https://drive.google.com/file/d/1ArcZXbFXOCMw4us6b_3ZoY7w3s0w5qQq/view
And, my other PDFs from: