Basically yeah. Where I live now, there aren't many bodies of water. Just the river and a small pond on a golf course. But people keep abandoning animals there thinking "water = duck fine!" Despite the fact that that's a death sentence. They might live a year or two but they'll be picked off quickly. So anyways, I'm out taking a walk along it cause it's literally the only water for miles and I'm a water person.
(I only live in the desert now because I accepted a position at one of the foremost radio observatories on earth)
So there, laying half submerged is an egg. I look around and there's no ducks, no nest, nothing. All the ferals were congregated a ways down getting free bread from well meaning residents (they don't know better but bread is a terrible thing for them). If it was in a nest I'd leave well enough alone but I figure might as well take the little guy home and see if he can incubate. Well a week ago he hatched.
By the way, I was down by that way again today and found another egg. Just as well, the shipped eggs I got (8 total) almost all died in their eggs. Only one has made it so far and it just popped externally today.
Anyways, there's a bit of an exception that if you reasonably believe that the egg or eggs are abandoned, there is no rule against taking them home. The only exception is if you're reasonably confident it's a wild duck egg.
Anyways the little duck is about a week old now. I have a hutch for him outside when he no longer needs brooding and I've begun building a large pen for him and the other duck that's hatching.
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