I have had a lot of trouble getting my silkies to go up the ramp to the coop which is about 2 - 3 feet above ground.
When I got my first 3 silkies - 2 got the message straight away but the third took a week of persuaion at bedtime.
Being a novice - I never realised that silkies prefered to be at ground level.
Then when their first 2 chicks were old enough to go down to the run each day they had to be brought down by hand in the morning and put back up again at night. After 3 months they were pretty big and I decided enough was enough and left them to their own devices. They sleep under the coop, huddled in a corner on the edge of the dust bath - their choice!
Then the second batch of chicks arrived and this time there were 10!
I swore that there was no way that I was going to be on morning and night bed duty (remember you have to CATCH them first!)
So we built a small extension to the coop 6 inches off the ground on little legs with a little pop hole from the dust bath and small ramp so they could go in and out at their leisure. They still do that to this day. Easy.
We introduced my 3 year old Polish Crested rooster to the flock, slowly. Eventually he took his place under the coop just outside the pop hole to the extension and perches on the roost pole - he's the only one to perch like a real chicken.
The silkies all like to be on flat surfaces either with sand or shavings.
Now I have 3 new chicks - silkie/polish crested cross - where they will go - who knows!
If they have any sense they will go up to the coop which is only ever used by my 2 original silkie hens - what a waste of a lovely warm coop.