Agree with Falcon.
The first one oculd be a immature male Japanese Thrush while the 3rd is a female I think. The second one is a pale thrush.
Christina, you can notify the black dots of Japanese thrush spread through the belly while a grey backed thrush won't reach that low at belly.
![](http://web.hku.hk/~raccoon/IMG_0153_2.JPG)
This is a Grey-backed Thrush.