Thursday, 23 August 2012

Seeing the Changes 528

The Japanese knotweed (Reynoutria japonica) is in flower in Loughor and a Grey dagger moth (Acronicta psi) larva appeared in the garden . The larva is much easier to distinguish from the Dark dagger (Acronicta tridens) than is the adult insect.

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Sandwich Island Saga 62. Wind turbines and birds

Research in Norway has revealed that painting one blade of a wind turbine black, greatly reduces the number of bird collisions. ...