Found a dove egg - 3 dead babies in nest

[can't get enough chicken]

Hi all!

There is a dove's nest by my neighbours' front door and the parents have not been back all night and day. There are 3 dead brand new baby birds in there and one egg. Last year, at the same nest, all the babies died.

I took the remaining egg and put it in an incubator but I candled it first. I don't think there is anything in there but have never incubated eggs so would love some advice. Is it worth incubating and giving to a wildlife center?

 

[AltonaAcres]

It is most likely infertile. If the other eggs already hatched, this one should be close to hatching, which would appear when candling as a completely dark egg that would move or cheep.