A Humming Bird Flower 
The common nasturtium may be taken as a type of 
flower which advertises to the birds rather than to the bees. 
The honey is stored at the bottom of a long tube down which a 
bee could hardly stretch its proboscis. In many other ways, 
including the arrangement of the stamens and pistils, 
bird flowers show their adaptation to the partner- 
ship which their ancestors have built up. 
