Interbreeding two different species of lovebirds produces offspring that are unable to build a nest after they mature because they lack the appropriate nest-building behavior needed to build a nest. This limits genetic mixing between the species due to.

The question is incomplete and the whole question is-

Interbreeding two different species of lovebirds produces offspring unable to build a nest after  they mature because they lack the innate knowledge needed to carry the nesting materials. The hybrid offspring do not reproduce, and this limits genetic mixing of the two species. This is an example of:

The correct answer is- Hybrid infertility

Explanation:

When members of two different species reproduce and produce offspring, then these offsprings are called hybrid. If the hybrid offsprings are not able to produce viable gamete and do not able to reproduce then this is called hybrid infertility. One of the famous examples is mule produce by breeding between donkey and horse.

So here interbreeding of two species of lovebirds produces offspring that do not reproduce and lack innate knowledge needed to build the nest which limits the genetic mixing between the species due to hybrid infertility.

a chain link fence because there so tiny even my albino donkey can't get out

idk what happened..you tell