Remove the Drake... Momma wants nothing to do with intruders....I have 8 call eggs under a first time mom, we are at day 24. 2 years ago, my other call pair were first time parents and the mom trampled the eggs when they started moving. I only saved 2 of the 11, and it was so hard... I can't stress hard enough, don't intervene unless you absolutely have to! They are small, mighty little ducks. But, it takes them time because of their size!