Why replace the Goldfinch's eggs !? 🥚 + explanation 🐣 

Hello lads,
today a very important video for those who are just starting out with the world of the goldfinch and also applies to other birds such as canaries, serins etc ....
the change of the egg is very important because thanks to this technique the eggs hatch all together otherwise they would hatch with days of difference and this decreases the survival percentage of the bird.
next time we will remain on the theme of eggs and laying so don't forget to subscribe and leave a comment 👍 I thank you for watching it and see you next time 😉
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