Insectivorous Birds and Global Warming? (1 Viewer)

[carjug]

Are there any territorial, non-migratory insectivores? I am asking this because I went to a global warming meeting, and the group spent a lot of time talking about bugs. It seems like keeping track of birds who eat bugs would be a good idea, and I am sure someone is already doing it. Where could I find range maps on woodpeckers, for instance, or are there better options out there???? I am interested in boring local yokels because they have fewer complications than migrants like warblers.
Carjug

 

[bkrownd]

do your nuthatches and carolina wrens stick around all year?

 

[Bird_Bill]

do your nuthatches and carolina wrens stick around all year?

Here around 38' 38" North latitude in the states, both White-Breasted Nuthatch and Carolina Wrens will stick around as long as there is open water. Both are omnivores, with much of their winter diet based on organics such as nuts, and residual berries. The Carolina will root about in brush piles and that sort of thing, where coming across dormant insects stands a good chance. Nuthatch likewise, will glean dormant winter insects just below tree bark. House Wrens on the other hand, will overwinter as far south as Argentina.

For native picidae (woodpeckers) to area, Downys, Hairys, Red-Bellied, Red-Headed, and Pileated, much the same can be said. It's only my opinion that open water plays a greater role in keeping those birds around than insects. Specialization in woodpeckers allows them to forage in manner to specific advantage also. Northern Flickers seem somewhat of mystery for myself, as I do not see many in the winter. Sapsuckers, like the Yellow-bellied are decidedly migratory and seen here exclusively through the winter.