Unusual feeding congregations

["Philip Veerman" <>]

Con,

 

You wrote: "The proportion of whistlers is unusual on Black Mountain. Normally I see more Rufous than Golden whistlers."

 

That depends on the season. Both Whistlers are migrants in Canberra. In warmer months it will be true that: "I see more Rufous than Golden whistlers". In contrast, in cooler months it will be true that: "I see more Golden than Rufous Whistlers". Autumn and Spring are changeover times. Simple. Also these mixed species flocks occur more often in Autumn and Winter than other seasons.

 

Philip