Is this embryo alive?

[Lucy-Whey]

Hi, I candled my lovebird eggs this morning and found one definitely living but the other one I wasn’t so sure about. The veins seem thicker and there was a dark patch. The egg was laid six days ago. Thanks.

 

[Zara]

Seems ok to me for now. Check it again in a few days and you should be able to see if it is fertile or was an early death.