Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1998
1999
Walter D Green
Melanerpes formicivorus
3
School Hill
HNNR
22 April
Plenty of stores here, but activity is back down
and none is • in any holes.
§7 May
1145. Bird in last year's hole. 2 eggs, fresh. Measured
and collected 1 for hormones: 25.2 x 20.4 mm. One
egg left.
17 May
1145. Checked the hole: only 2 eggs, only 1 of which
is developed! Guess taking an egg ☐ wasn't a
good idea after all. Might want to transplant
it and let them try again.
21 May
1315. 1 baby, ~2 do. May transplant birds here if
possible. But if not, band ~9 June.
1999
27 April
1200. Lots of stores; none in any holes. Checked
the 1997 hole, though: empty, but in good shape.
28 April
1530. 6 2 birds in the 1997 hole, but still no egg.
12 May
1130. Bird flushed from the (old) low hole in Tree #1!
Checked it: it's in good shape, but empty.
21 May
1330. Checked low hole: 2 fresh eggs!
Measured & marked: ① 24.7 x 20.8 ② 24.9 x 20.2
26 May
1015. 4 eggs now. (2 marked, 2 not).
Should hatch ~2 June.
9 June
1715. 2 babies, ~5 do (band 23 June) + 2 unhatched
eggs, #1 and unmarked (③ 25.5 x 26.7 mm).
Both undeveloped & removed.
20 July
1545. Bird in (other) hole! (#276). Checked it: empty, but in
good shape. A few (but only a few) stores left.