Acorn woodpecker species accounts, v4457
Page 157
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1983 R.C. Munne M. formicivorus Roual (1 May) The bad news is that I checked the hole at 1415 and found only 7 eggs! Egg #5 has disappeared, for reasons unknown. Damaged? House wren? Snake? Who knows. Egg ⑤ was apparently one of ③883's, so the current skew is 5-2. What's more, egg ③, also of ③883 has a slight chick in it, meaning it may not hatch. Could be a strong skew in young fledged here. 8 May Checked nest, 1830; Hatching, see nest record. 10 May Checked nest, 1030: 3 nestlings, plus egg ⑦ that failed to hatch. Found hatching fragments of eggs ① or ④, leading me to suspect final skew is 3-0 in favor of ②269. One of the 3 nestlings marked with blue sharpie on 8 May was missing. 1 June 1630, Banded ⑥ a disappointing 1 nestling 5 June Granary census, 1415-1615, o-back. Routine. Birds doing a bit of sap-sucking from the Live Oak behind the 1° granary. ②269, ③883, ④86, ⑤78, ⑤79, ⑤80, ⑥72 all seen well. Only ②294 + ⑧804 missing. 6 June Granary census, 0810-1010; Same birds as yesterday plus ⑧804 seen too meaning only ②294 is missing. Best thing was that a ~3 foot gopher snake was in the middle stubs of the primary granary, being mobbed fairly vigorously by several birds, especially ④86, until the snake took refuge in a hole. The breeding ①Q ad ①helpers also mobbed with some enthusiasm. Though ⑤78 + ⑧804 were around, they didn't do much other than approach a few times.