How to bond with a rescued Chinchilla

I have recently gotten 3 new chinchillas (I now have 4) which I have had for about a month. the male Nimbus loves attention and being petted but not being picked up he also gets spooked very easily. the 2 girls (Cloud and Beatrice) won't let me touch them at all they slap my hand away and run. Cloud however is very curious and will come up to me and put her front paws up on my hand and check things out. The girls don't enjoy out of their cage playtime as they are too afraid they instead get...

How to bond with a rescued Chinchilla