Jubilee Orpington
Chocolate Orpington
Lavender Orpington
Buff Orpington
American Serama’s (frizzle , Silkie)
Ayam cemani
Old English Black Breasted red
Ameraucana (splash and Blue)
You can try moving things around if possible , like you say they watch and pattern our behavior for days sometimes before they move and if they can’t get you patterned that will help . invest in a live trap set with a piece of fried chicken.