birding-aus
Dear Lorne
I'm puzzled by your description of Glossy Blacks feeding behaviour. The
"seed" of a Casuarina is smaller than a match head - too small, I would
think, to be twisted and manipulated in the feet. Presumably what the
birds were opening was the "cones" bearing the seed. If so, were they
actually eating the inside "core" of the cone, as your description
implies, or were they feeding on the (presumably) more nutritious seeds?
The latter are formed in the <outer> layers of the cone from which they
are released when ripe.
Regards, Anne
--
Anne & Roger A. Green
Atriplex Services-Environmental Consultants, Landscapers, Educators
and Growers of Native Australian Plants.
http://www.riverland.net.au/~atriplex
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