Table 4.

Summary of relative levels¹ of Cntnap2 expression in selected song-related regions and adjacent tissue of male and female zebra finch brain.

Age (days posthatch)	15d		25d		35d		50d		75d		Adult
Sex	M	F	M	F	M	F	M	F	M	F	M	F
Telencephalon
HA	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
HD	+	+	+	+	+	+	+	+	+	+	+	+
M	+	+	+	+	+	+	+	+	+	+	+	+
LMAN	+++	++	+++	++	+++	+++	++++	++++	++++	+++	++++	+++
N	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
X	++	-	++	-	++	-	++	-	++	-	++	-
St	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
NC	++	++	++	++	++	++	++	++	++	++	++	++
A	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
RA	++++	++++	++++	++++	++++	++++	++++	+++	++++	+++	++++	++
HVC	++	++	++	++	++	++	++	++	++	++	++	++
Diencephalon
DTZ											++	++
SpM											++++	++++
SpL											++++	++++
Midbrain
TeO (layer 13)	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++
ICo/MLd	++	++	++	++	++	++	++	++	++	++	++	++
IM/IPc	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++	++++
Hindbrain
Cb	++	++	++	++	++	++	++	++	++	++	++	++

¹Transcript levels were semi-quantitatively estimated by densitometric measurements of in situ film hybridization signals in single sections of individual birds using AxioVision software. Levels of relative expression were then classified according to a subjective scale as ++++ (very high), +++ (high), ++ (moderate), + (low) or – (not detectable or structures not present). For abbreviations of brain structures, see Table 1.