Pair link up with Conference Premier sides
Ryan Bird and Adam Webster have moved on loan to Cambridge and Aldershot respectively.
Striker Bird, 26, has penned an initial one-month deal with the Conference Premier promotion contenders.
He will link up with Blues goalkeeper John Sullivan, who is also on loan at the Abbey Stadium.
Bird arrived at Fratton Park last summer and has scored three goals in 22 appearances, while also having a spell on loan at Havant & Waterlooville.
Defender Webster, 19, has linked up with the Shots until the end of the season.
He spent the first half of the season at the Recreation Ground, making 21 appearances for the Conference Premier side.