Terminology of comparable regions across avian species studied

n.d., not done. Humb, hummingbird. Song, songbird. Abbreviations are listed below.
Abbreviations
A, arcopallium
AAC, central nucleus of the anterior arcopallium
ACM, caudal medial arcopallium
AH, anterior hyperpallium
AI, intermediate arcopallium
AIVM, ventral medial intermediate arcopallium
AMD, anterior dorsal mesopallium
AMV, anterior ventral mesopallium
AN, anterior nidopallium
Area X, a vocal nucleus
ASt, anterior striatum
Av, nucleus avalanche
B, basorostralis
Cb, cerebellum
CM, caudal mesopallium
CSt, caudal striatum
DLN, dorsal lateral nidopallium
DLM, dorsal lateral nucleus of the thalamus
DM, dorsal medial nucleus of the midbrain
DMm, magnocellular nucleus of the dorsal thalamus
DT, dorsal thamalus
E, entopallium
GP, globus pallidus
H, hyperpallium
Hp, hippocampus
HVC, a vocal nucleus (no abbreviation)
LAI, lateral intermediate arcopallium
LAN, lateral nucleus of the anterior nidopallium
LAM, lateral nucleus of the anterior mesopallium
LMV, lateral ventral mesopallium
M, mesopallium
MAN, magnocellular nucleus of the anterior nidopallium
MLd, dorsal part of the lateral mesencephalic nucleus
MMSt, magnocellular nucleus of the medial striatum
MO, oval nucleus of the mesopallium
MD, dorsal mesopallium
MN, motor neurons
MV, ventral mesopallium
MVb, ventral mesopallium adjacent to B
MVe, ventral mesopallium adjacent to E
MV-L2, ventral mesopallium adjacent to L2 (same as CM)
N, nidopallium
Nb, nidopallium adjacent to B
ND, dorsal nidopallium
Ne, nidopallium adjacent to E
N-L2, nidopallium adjacent to L2
NAO, oval nucleus of the anterior nidopallium
NDC, caudal dorsal nidopallium
NIDL, dorsal lateral intermediate nidopallium
NIf, interfacial nucleus of the nidopallium
NLC, central nucleus of the lateral nidopallium
nXIIts, 12th nucleus tracheosyringeal part
OT, optic tectum
PDN, posterior dorsal nidopallium
PH, posterior hyperpallium
PLMV, posterior lateral ventral mesopallium
PLN, posterior lateral nidopallium
PLSt, posterior lateral striatum
PDN, posterior dorsal nidopallium
PMN, pre-motor neurons
RA, robust nucleus of the arcopallium
S, septum
SLN, supra lateral nidopallium
St, striatum
Ste, striatum adjacent to E
v, ventricle
VA, vocal nucleus of the arcopallium
VAM, vocal nucleus of the anterior mesopallium
VAN, vocal nucleus of the anterior nidopallium
VASt, vocal nucleus of the anterior striatum
VMM, vocal nucleus of the medial mesopallium
VLN, vocal nucleus of the lateral nidopallium