Tuesday, June 25, 2024

— Cicada Flagging… quick question —

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Quick question (someone asked me about recently and maybe one of you entymologically-inclined folks know the answer to):


They were explaining to me about cicada “flagging” (HERE, HERE) — the pic above, where momma cicada lays her eggs (100s) at tip of branches, eventually turning them brown and dead before nymphs fall to ground to re-emerge 17 years later. Just for "fun” my friend was calculating how many cicadas would emerge on his property 17 years from now just based on counting the number of flags (and average no. of eggs per flag… hahh, he's more anal-compulsive than I am!).


Anyway, it’s well known that birds feasted on the cicadas this spring (...even the large number of interesting moths and butterflies I saw in last month was indicative of them being ignored by birds in favor of the newly-rich protein source). I assume(?) IBWOs would also gobble up cicadas (one of my friend's questions), but more specifically, he wondered if these flagging areas where the nymphs break out would be a dining target for IBWOs — Ivorybills are exceedingly difficult to search for in spring once foliage emerges, but would scanning these outer easily-accessible tree spots be of any use? I don’t know, though in my sparse/limited viewing, I’ve not noticed other species gravitating to these brown twiggy areas??? But anyone else have a thought….



Followup 6/27:  Surprised no one answered this; either no one knows the answer, or, it’s a dumb question…. or, no one wants to be seen answering a question on an Ivory-bill blog, hahhh!

In any event FWIW I’ve spent some time now observing dozens of these ‘flags’ in my area and haven’t yet seen a single bird of any species feeding thereupon, so there’s that.


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