Table 1. Mean (and standard deviation) of morphometrics, with P-values based on t-tests (independent samples) for sparrows used in thermal imaging experiments.
| Measurement | Eastern song sparrow | Atlantic song sparrow | P-value (t-test)a | Percentage increaseb |
| Wing Chord (mm) | 65.89 (1.19) | 63.92 (1.44) | 0.060 | 2.8 |
| Weight (g) | 18.89 (1.27) | 19.97 (1.05) | 0.922 | 5.8 |
| Tarsus (mm) | 20.01 (0.74) | 19.85 (0.89) | 1.000 | 0.8 |
| Bill cone area (mm2) | 88.19 (4.21) | 99.89 (19.81) | 0.015 | 13.1 |
| Total bill area (mm2) | 127.46 (10.41) | 148.70 (12.12) | 0.011 | 16.7 |
| Leg area (mm2) | 240.07 (20.87) | 241.94 (20.61) | 1.000 | 0.8 |
| Body area (mm2) | 5846.04 (149.26) | 5852.78 (226.03) | 1.000 | 0.1 |
| Total bill area as a percent of entire area | 2.05 (0.18) | 2.38 (0.18) | 0.015 | 16.0 |
| Leg area as a percent of entire area | 3.86 (0.27) | 3.87 (0.31) | 1.000 | 0.4 |
| Body area as a percent of entire area | 94.09 (0.29) | 93.74 (0.45) | 0.728 | 0.4 |
a
t-tests assume equal variances in both subspecies and Bonferroni corrections were applied.
b
((Larger taxa mean-smaller taxa mean)/smaller taxa mean)*100%.