You can download an ad blocker. I can’t recommend a particular one. I have an iPad and I don’t see the ads, but I know people use ad blockers and that they are often free. Alternatively you can become a premium member. I believe that turns off the ads.
This helps me- https://www.backyardchickens.com/account/upgrades
Takes a lot of $ to run a web site of this magnitude.
Ads create revenue to keep the site running.
By joining with Premium Feather, the ads go away and the members support the big bills, not the advertisers.