Sticky streak on egg

[lemonlaw]

My australorp started laying a month ago and the past few eggs have had a slightly sticky streak across them. Her bum is clear, the nesting box is cleaned out and I have checked poo for the past week with no evidence of worms. Any thoughts on what could be causing this clear, sticky streak?

 

[CascadiaRiver]

I don't know exactly what it is, my birds lay eggs like them fairly often and it doesnt seem to hurt anyone, ^^

 

[lemonlaw]

Thanks! That comforts this silly chicken mama!