Table 1 Results of radio-tracking of the displaced experimental white-throated sparrows in Saskatchewan.

From: Experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study

Group

Mean group direction (α)

Vector length

Sample size (n)

Rayleigh uniformity test (Z)

P

95% Confidence interval

INTACT

341°

0.87

8

5.99

<0.001

314°–7°

REAL_OLF

348°

0.97

6

5.65

<0.001

333°–3°

REAL_MAG

340°

0.86

6

4.38

<0.01

305°–14°

SHAM_OLF

16°

0.76

7

4.01

0.01

337°–56°

SHAM_MAG

354°

0.82

6

4.08

0.01

316°–32°

  1. INTACT−non-surgically treated birds, REAL_OLF−sectioned olfactory nerve (the sense of smell is deactivated), REAL_MAG−ablated ophthalmic branch of trigeminal nerve (the beak organ’s magnetic sense is deactivated), SHAM_OLF and SHAM_MAG−sham surgical treatments simulating the surgeries on olfactory and trigeminal nerves, correspondingly, but without real sectioning of the nerves.
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