Janet Baraclough wrote:
The message
from "Sue" contains these words:

Saw this in yesterday's paper.

Another upset in the balance of nature attributed to the effects
of
global warming. Puffins are losing out on nesting sites because of
invasive tree mallow which is now growing wild on their Scottish
island breeding grounds.

http://observer.guardian.co.uk/uk_ne...670017,00.html

The RSPB has a more convincing explanation

www.rspb.org.uk/birds/seabirdfailure.asp

Fewer breeding puffins (due to loss of sand eel food supply)
would
mean fewer nest burrows, less soil disturbance, therefore more
plants
would survive and thrive.

Six and half a dozen, perhaps. It's fast-growing, and could put down
a lot of root during the puffins' inactive period.

--
Mike.