Telegraph: Numbers of little egrets, firecrests, cranes and Mediterranean gulls are at their highest since monitoring by the Rare Breeding Birds Panel (RBBP) began in 1973. But the study warned that other species of breeding birds may be suffering as a result of changing temperatures and landscapes. The Rare Breeding Birds survey for 2006 – the most up-to-date figures – showed how certain birds have flourished in the mild winters. Little egrets increased to a recorded 434 breeding …