Field Notes · Catnum 240021 · score 21 — high uncertainty
May 27 - 1:10pm 4 eggs 40° F. - mad - midway between 1 most and middle hole. He is bird/ nest one warm - cold egg 2:18pm one egg cold no bruise 6:48pm one egg warm (mushed) no bruise 5/28 9:46AM one egg warm no bruise 2:07pm one egg cold no bruise 5/29 9:35AM 2 eggs warm no bruise CD II 5/30 1:27pm 3 eggs warm no bruise 5/31 10:47AM same warm no bruise June 1 1:34pm same warm no bruise - deep shade 6/1 2:49pm same warm dry no bruise CD II (shaded) 6/3 2:11pm same warm no bruise 6/5 8:47AM nest gone just a few fibers remain all 4 eggs on ground no bruise 2 catbird eggs here slight cracks (one of these opened in field had embryo with beating heart) other 2 eggs gone 4 22.00 x 18.12 B 23.20 x 18.12 embryos preserved.
Metadata · Catnum 240021
Date27 May 1969
LocalityNew Haven, Connecticut, USA
CollectorRothstein, Steve
Eggs in Set4
Specimen TypeE
Incubationadvanced
Identificationunknown
Nest Settingdeep shade
Nest NotesNest location described as midway between 1 most and middle hole. Nest disappeared by June 5, with only a few fibers remaining and all 4 eggs found on ground.
HeaderSibley
Further Details240,021 | 69-251
✦ Anecdote
This record documents an unusual predation or disturbance event where the nest completely disappeared between observation visits, leaving only scattered fibers and eggs on the ground, with one egg containing a living embryo with a beating heart when examined in the field.