From: Harderian gland of flying and non-flying birds: morphological, histological, and histochemical studies
Parameter
Mean ± SD
Minimum
Maximum
Length of HG
1.65 ± 0.047
1.50
1.80
Width of HG (anterior extremity)
0.95 ± 0.108
0.80
1.10
Width of HG (posterior extremity)
0.89 ± 0.074
1.00
Thickness of HG
0.39 ± 0.057
0.30
0.50