Healthy hen hasn't laid in 7 months

[Kikiwild]

I have an Americana that just turned 1 in February. She laid consistently for a few months and then one of her flock mates was killed by a neighbor dog and she and another chicken both quit laying. They didn't resume laying as it was winter but since spring has arrived the other chicken started laying again but she hasn't. It's been almost 7 months since her last egg. Her comb is red, she seems like her normal self, eating, drinking, feathers look good...what should I look for?

 

[aart]

How are you positive she is not laying?
Do they free range?
Might be time for an exam:
https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/

 

[Kikiwild]

How are you positive she is not laying?
Do they free range?
Might be time for an exam:
https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/

I only have 4 chickens. 3 are brown layers and she lays blue. No blue eggs in months! They are in 1,000 Sq ft fenced area. Sorta free range but safer from dogs. No eggs outside either...