Acorn woodpecker species accounts, v4450
Page 151
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Transcription
1991 Walter D Koenig 4 Melanerpes formicivorus Westgate HNHR (14 May) ?1473. Last seen 9 Jan, gone by 12 March → D.A. 10 Feb ± 1 month. ?1889. Last seen 12 March, gone by 7 April → D.A. 25 March ± 2 wks. 15 May Morne watched this morning - ?1473 was in the road hole for 20 min just at the right time? could have been it! But he watched until ~930 with no other activity at the hole. We came back at 1030 and checked the hole: empty. Hence, either not yet or it got tossed between 930-1030; I'll guess the former. Should be soon, though! 16 May Morne reports that ?1473 laid, ?1415 tossed! Egg looked normal (best he could tell). No real indication that ?1415 laid afterwards. It's on! Note that ?1473 could have laid a runt egg yesterday that we missed. 17 May Morne watched again this morning in what turned out to be a very interesting twist: ?1415 laid a runt egg which ?1473 tossed, after which ?1473 laid a normal egg that ?1415 tossed! Hence, possibly a first: reciprocal egg-tossing from the same hole! Pretty neat. Tomorrow it's my turn. Note that we have not checked the nest itself since 15 May (it's a very scary hole) but the observational evidence appears to be good. See Morne's notes for more detail. 18 May 930.Watched this (crummy) morning with Danny, but no egg- tossing: ?1415 laid and then ?1473 laid, after having the opportunity to toss ?1415's egg but not doing so. See [illegible] for compilation. Nest was checked at 915 and the 2 (normal) eggs marked.