Block with Oyster Shells for Birds Duvo+ 200 g, dimensions 7.2×9.7×3.5 cm

Duvo+ Block with Oyster Shells for Birds is a 200 g compact mineral and calcium supplement designed for wild and kept birds. The block (7.2×9.7×3.5 cm) combines crushed oyster shells and binding ingredients to deliver accessible calcium, essential trace minerals and grit-like particles. It is intended for use in garden feeders, on outdoor bird tables and in aviaries to support shell formation in laying birds, maintain beak condition and assist digestion.

Advantages

The Duvo+ block supplies concentrated calcium in an easy-to-place form that resists weathering and stays available for birds at feeders. Its compact size and shape fit most standard holders and can be mounted or placed on flat feeding surfaces. The oyster shell component provides naturally occurring calcium carbonate and small sharp particles that help with mechanical grinding in the gizzard, while additional minerals contribute to general nutritional balance.

Suitable for

• Wild garden birds visiting feeders and tables
• Pet and aviary birds requiring extra calcium
• Breeding or laying birds needing support for eggshell quality
• Outdoor feeding stations and mounted mineral holders

Key specifications

• Net weight: 200 g
• Physical dimensions: 7.2 × 9.7 × 3.5 cm
• Main components: crushed oyster shells and binding matrix
• Form: compact block suitable for mounting or placement
• Intended use: mineral and calcium supplement for birds

How to use

Place the block on a flat feeding surface, in a purpose-built mineral holder or attach it to a feeder where birds can access it safely. Replace the block when it is mostly consumed or degraded. Ensure fresh water and regular feed remain available alongside the block to provide a balanced diet. For aviary use, position the block away from perching areas to minimize contamination from droppings.

Usage recommendations

Offer the block continuously in locations frequented by birds; monitor consumption and hygiene. Do not substitute the block for a complete diet—use it as a supplementary source of calcium and minerals. Store unused blocks in a cool, dry place.