Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1983 R.L. Mumme
M. formicivorus
Hay Blam
3 May Whoa, things happen fast here. Denise watched here in the fog this morning, and she saw a shadowy figure of an ALV leaving the ferrelite hole at 0630.
I climb up at 0715 and find one egg! Laid by somebody earlier today, but we don't know who.
Denise & Philip start all day watch of the hole and the egg. Egg measured: 26.8 x 18.7
Denise reports that 9604 "fossed" (carried egg to granary, not known to be eaten.) 1500 hrs.
The egg is much longer & narrower than the eggs laid last year by 9604 (the narrowest of 7 eggs last year measured 25.8 x 19.5), so I suspect that 9711 is the 9 that laid this egg. However, we will have to see what happens tomorrow.
4 May Good stuff today. 9711 clearly laid an egg this morning, and 9604 threw it out (again carrying it to the granary, where she "dropped it off" and returned to the nest hole. Whether the egg was eaten again unclear, but not important. What is important is that 9711 was certainly the 9 that laid, another case of a natal territory 9 laying when dad has been replaced. See Denise's notes.
5 May Denise watches hole and finds nobody going in the hole. I checked it at 0815, finding it empty.
6 May I check both of the "far tree" holes, both empty 1000.
11 May HB has pulled a fastone on us. See nest record
12 June Nest failure here, see nest record