I have 3 ducks, two we think are English Aylesburys and one Indian Runner Duck. I think (?) that this egg is our Indian Runner but I'm not 100% on that.
Today I went down and only got two eggs but this evening I found this egg. I'm not entirely sure what's happened but the crust layer seems to actually be part of the egg itself rather than being pecked.
Does anyone know what's up with it and if I should be concerned. All the others have been fine for months, and the other two I got today are completely normal.
