Wildlife Spotting

There's a strange thing, when we first spotted them there were only 4 eggs, 2 whites and 2 spotted, the next day there were 6 of them like in the picture. We are thrilled because we can't explain who is it possible that 2 more eggs appeared, and they 1 white and 1 spotted

Sergio Monteiro, I don't think they are cuckoo eggs though, I believe there aren't cuckoos in Mexico, so it has to be a similar bird.

Ava T-B, Done! thank you, hope you can help me identify the birds, i believe they are 2 different types of birds. the one who laid the white ones and the spotted ones.