^^ post is good advice. Put a chair in your run and just sit there 20-30 minutes. Do not try an touch them, or call them or anything, get up and leave.
Day two - go sit in the chair for 10 minutes, then throw out some feed away from you. Sit quietly while they eat the treats. Wait till they leave the treats then go.
Day three and four - repeat, except each day, put the treats just slightly closer to you, do not reach for the birds, just sit there.
Repeat, one day they will jump into your lap.
Some birds are better at this than others. Some just really don't like to be handled or petted. Do be aware, that chickens are not puppies or kittens, where as if you are nice to them, they are nice to you. Being nice to a chicken is being submissive to them, you are lower in respect when they sit on your lap. Not a big deal with chickens, but you have two roosters.
Roosters that do not respect your distance, who become pets, loose all fear of people, loose all respect and often become violent bullies.
Mrs K