The crested pigeons are ornamentals. They would return to your loft if they just flew out and not ventured far. Not good for much distance. The spotted doves, I'm not sure if you are referring to spotted feral pigeons, or mourning doves. If they are feral pigeons, then they are good to be homing.
Here is the way to achieve what you want.
Build a loft. Onto your loft build what is referred to as a trap. Capture a few pigeons. You will need a few because you will need to have both males and females. When you see too many fighting, those are males. Thin the herd by removing those males you don't want to incorporate into your breeding. In time, some will pair up and you will have baby pigeons. This may take some time possibly. Pigeons pair up for life normally. What you will possibly have is strangers pairing up since original mates are not available. When your baby pigeons are 4 weeks old, and are already trying to fly, you start to homeset them. Let them out thru the pigeon trap and they will only fly away just to surrounding rooftops or trees. Mom and dad are in aviary behind the trap. Lil junior will get hungry in short, and will attempt to get back to mama. At that stage, it is dad that is feeding him. Mom and dad both feed until about 3 weeks. When he gets back in he is fed. but most importantly he learned how to return to the loft. Keep doing this process. Eventually junior will venture further and keep coming back. This is also when he is no longer being fed by parent. Coming home for dinner. Do this until you get your desired amount of young pigeons in your loft. These are pigeons that will keep returning to your loft. Throughout this whole process, the parents are known as being kept prisoner. When you have enough pigeons, you may decide to let parents loose. Chances are 50/50 after having 3 or 4 litters, the parents to decide to homeset in your coop. Best way for success is to let the male out first. If he keeps coming back, then release female only. If she keeps returning, then you have succeeded homesetting them. Let the whole pack loose and enjoy the beauty of freeflight of your group.
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Sputnik style pigeon trap. I have something of this style but modified.
Check Youtube for ideas on building lofts.