| The former also produce the disease known as canker in pigeons, or frounce in birds of prey, and are treated with anti-protozoal drugs. |
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| Raptors may become infected by eating infected birds and in raptors, the disease is often called frounce. |
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| Another secondary cause of death in our urban hawks is frounce. |
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| The disease occurs in numerous types of birds, including pigeons, where it is called canker and birds of prey, where it is known as frounce. |
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| Frounce is caused by a protozoan called Trichomonas which is frequently present in the crops of pigeons. |
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| Frounce is not harmful to people, but it is potentially lethal to raptors who consume sick pigeons. |
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| Frounce and frill reached a peak in the 80s with many brides copying the meringuelike voluptuousness characterised by Princess Diana's wedding frock. |
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