I can see entries in the access logs until just over an hour ago on that IP address
Code:
104.224.120.207 - - [12/Mar/2019:20:55:01 +0000] GET /account/alerts HTTP/1.1 "200" 83164 "https://www.backyardchickens.com/threads/chicken-pulling-feathers.1296130/" "Mozilla/5.0 (iPad; CPU OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1" "104.224.120.207" "-" "3383240" "5" "0.000"
104.224.120.207 - - [12/Mar/2019:20:55:18 +0000] GET /forums/ HTTP/1.1 "200" 166213 "https://www.backyardchickens.com/account/alerts" "Mozilla/5.0 (iPad; CPU OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1" "104.224.120.207" "-" "3384050" "5" "0.200"
104.224.120.207 - - [12/Mar/2019:20:55:45 +0000] GET /forums/ducks.42/ HTTP/1.1 "200" 202238 "https://www.backyardchickens.com/forums/" "Mozilla/5.0 (iPad; CPU OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1" "104.224.120.207" "-" "3384868" "1" "0.100"
127.0.0.1 - - [12/Mar/2019:21:03:40 +0000] GET /threads/homegrown-feed.1296049/ HTTP/1.1 "200" 23681 "https://www.backyardchickens.com/forums/ducks.42/" "Mozilla/5.0 (iPad; CPU OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1" "104.224.120.207,127.0.0.1,127.0.0.1" "-" "3402308" "1" "0.100"
On the last request, something changed, because your device started adding 127.0.0.1 to the requests, and then 104.224.120.207,127.0.0.1,127.0.0.1 as the source IP address of the final request.
This isn't something with Cloudflare or BYC, it's local to your device.