You can’t tell from the context I gave, admittedly. But in the original research it is quite clear that birds will prefer to take care of larger eggs in their own broods, and will neglect smaller eggs. If a similar but larger egg from another species is present, the birds will actually prefer to care for it, since it is larger and thus “seems” more viable.
You can’t tell from the context I gave, admittedly. But in the original research it is quite clear that birds will prefer to take care of larger eggs in their own broods, and will neglect smaller eggs. If a similar but larger egg from another species is present, the birds will actually prefer to care for it, since it is larger and thus “seems” more viable.