Ornithological equipment: Wing rulers
Ecotone Versatile ornithological ruler 15 cm / 6 inches (wing & tail)
- Item code RULER15TW
Ornithological stainless steel ruler (15 cm/ 6 inches). Excellent for wing and tail measuring.
Ecotone Ornithological Ruler 15 cm (mm/mm)
- Item code RULER15CM
Ornithological stainless steel ruler (15 cm). Excellent for wing measuring.
Ecotone Ornithological Ruler 30 cm
- Item code RULER30
Wing Ruler 30cm - a basic model for measuring passerines and small non-passerines
Ecotone Ecotone Ornithological Ruler 100cm
- Item code RULER100
Ruler for ornithological measurements - 100cm.