And animals are good and money to earn

Idea # 1:

1) Cool birdhouse, which does not spoil the view of the city, from material that can be easily repainted under any situation (examples of birdhouses # 1 , # 2 , etc. )

2) Near it there is a feeding trough, maybe even a drinking bowl with heating, so that the water does not freeze in winter.
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3) The birdhouse is high above the ground on a tree or other tall object.

4) Below, at the human level, there is a money receiver + feed / water indicator in the bird.

5) Anyone who wants to can put a denyuzhku (throw 5-10 rubles) and give food to birds.

6) Suppose 10 rubles. enough for 1 day of food and drink.

7) From the birdhouse there is a signal to some site, where it is recorded how much food and drink is left in this birdhouse and it is shown on some Yandex.Map so that everyone can go and feed the bird.

8) The user artyomst in the comments suggested a good, in my opinion, idea to pay for the purchase through electronic money, in particular PayPal.

9) Almost at the same time, an idea with a webcam came to mind with the user sdevalex that would broadcast the bird's life.

Idea # 2:

1) Vending Vending Machine (such things, for the purchase of food, coffee, bottles of water, etc.), which will sell food for swans, ducks, etc., and stand near the reservoirs where these same birds inhabit ( for example, the Patriarch's Ponds).

PS:

I spread it only because I will forget about it myself in a few days, and even if I don’t forget it, I will never be able to realize it myself.