Why would cardinals abandon a nest with 2 eggs in it?

Cardinals may abandon a nest with eggs for several reasons, including disturbances from predators, human activity, or environmental factors like bad weather. If the nesting site becomes too unsafe or stressful, the parents might leave to protect themselves and their future reproductive opportunities. Additionally, if the eggs fail to develop properly or if the parents sense a lack of viability, they might choose to abandon the nest altogether.