Having trouble laying or just broody?

[ackie]

tha spray definitely works because they were dying on contact

 

[aart]

and one had little white things

Looks like a louse.

Google images of lice/mites and their eggs before the inspection so you'll know what you're looking for.

Part the feathers right down to the skin around vent, head/neck and under wings.

Best done well after dark with a strong flashlight/headlight, easier to 'catch' bird and also to check for the mites that live in structure and only come out at night to feed off roosting birds.

Wipe a white paper towel along the underside of roost to look for red smears(smashed well fed mites).

Good post about mite ID by Lady McCamley:
https://www.backyardchickens.com/threads/my-chicken-has-mites-now-what.1273674/page-2#post-20483008

 

[ackie]

update: she was roosting normally tonight and I didnt notice anything weird during the day (by which I mean I didnt notice one bird behaving differently).