Here's some others!
Frat
Faby
Fildren
Parront
MBS
Some of the bird abbreviations can be confusing... such as BCC could mean Blue Crowned Conure or Black Capped Conure. GCC could be Gold Capped Conure or Green Cheek Conure. Here's a 'short list'
ARN - African Ring Neck
B&G - Blue and Gold Macaw
BC or BCC - Blue Crown Conure / Black Capped Conure
BE2 - Bare-Eyed Cockatoo
BFA - Blue Front Amazon
BP2 - Black Palm Cockatoo
BSL - Blue Streak Lory
C2 - Citron Cockatoo
CAG - Congo African Grey
CM - Catalina Macaw
D2 - Ducorps Cockatoo
DYH - Double Yellow Head Amazon
E2 - Eleanora Cockatoo
G2 - Goffins Cockatoo
GC - Green Cheeked Conure
GCC - Gold Capped Conure
GCP - Grey Cheeked Parakeet
GE - Grand Eclectus
GSC-Greater Sulphur Crested Cockatoo
GW - Green Wing Macaw
HM - Hahns Macaw
HMC - Half Moon Conure
HY - Hyacinth Macaw
IRN - Indian Ring Neck
JC - Jenday Conure
Keet - Parakeet
LB - Lovebird
LCA - Lilac Crowned Amazon
LP - Lineolated Parakeet (Linnies)
LSC - Lessor Sulphur Crested Cockatoo
QP - Quaker Parrot/Parakeet
M2 - Moluccan Cockatoo
MBC - Maroon Belled Conure
MGM - Miligold Macaw
MM - Military Macaw
MM2 - Major Mitchell (LeadbeaterCockatoo)
MRHA-Mexican Red Head Amazon
MSC (MSC2)-Medium Sulphur Crested Cockatoo
OWA - Orange Winged Amazon
PC - Painted Conure
PFLB - Peachface Lovebird
POW - Princess of Wales
RB2 - Rose Breasted Cockatoo
RFM - Red Fronted Macaw
RLA - Red Lored Amazon
RM - Ruby Macaw
RSE - Red-Sided Eclectus
RV2 - Red Vented Cockatoo
SC - Sun Conure
SIE - Soloman Island Eclectus
SM - Scarlet Macaw
T2 - Triton Cockatoo
TAG - Timneh African Grey
Tiel - Cockatiel
Too - Cockatoo
U2 - Umbrella Cockatoo
Umbie - Umbrella Cockatoo
VE - Vosmaeri's Eclectus
WFA - White-Fronted Amazon
WF - White-Faced Cockatiel
YCM - Yellow-Collared Macaw
YFA - Yellow-Fronted Amazon
YNA - Yellow-Naped Amazon