Let me know if you know the answer to that question. 5/28/2019PP
So I looked up the answer to my question as nobody got it correct. This titmouse is cleaning up the nest. It is taking away a fecal sac which is a mucous membrane, generally white or clear with a dark end,[1] that surrounds the feces of some species of nestling birds.[2] It allows parent birds to more easily remove fecal material from the nest. The sacs are typically taken some distance from the nest and discarded.Young birds generally stop producing fecal sacs shortly before they fledge
Removal of fecal material helps to improve nest sanitation, which in turn helps to increase the likelihood that nestlings will remain healthy.[8] It also helps to reduce the chance that predators will see it or smell it and thereby find the nest. So bet you all didn't know that bit of info. I didn't either. Learn something new everyday.
We have thick white worms like that in the ground, called cutworms. They are very destructive as they cut down young plants and feed on the stems underground. They are larvae of some night flying moths which do not cause any damage.
