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Photograph 2<br />
Pollen loss<br />
When <strong>the</strong> hive entrance is too narrow or its ridges too<br />
sharp, <strong>the</strong> bees often lose <strong>the</strong> pollen-loads <strong>the</strong>y have<br />
so laboriously collected in hazardous conditions. Each<br />
hive entrance should be equipped with a device enabling<br />
its height and width to be altered depending on<br />
<strong>the</strong> season and strength of <strong>the</strong> colony.<br />
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