Table 1.

Mean optical density values of FoxP mRNA expression in budgerigar brains normalized to background

	D20 FoxP1		D20 FoxP2		D35 FoxP1		D35 FoxP2		D60 FoxP1		D60 FoxP2		Adult FoxP1		Adult FoxP2
Brain Region	M	F	M	F	M	F	M	F	M	F	M	F	M	F	M	F
Hyperpallium	57	58	36	37	71	74	52	46	77	80	57	55	78	77	61	68
Mesopallium	119	128	48	47	143	146	71	77	147	146	78	78	152	158	99	103
Nidopallium	49	54	50	42	49	49	42	33	60	53	48	47	59	54	53	60
Basorostral pallial nucleus	18	24	33	39	21	22	24	18	24	19	28	31	22	28	18	27
Medial striatum (MSt)	106	93	92	114	118	122	100	118	107	95	127	110	111	119	91	102
Magnocellular nucleus of the medial striatum (MMSt)	100	87	64	78	130	133	90	101	127	118	104	94	130	139	70	79