Field Notes · Catnum 240002 · score 32 — high uncertainty
4 Red Rod. May 30 12:44 AM 7 up in arbor vitae 50% cloud end rd. just so. of hospital 1 twin white birch visible to 255E, distinctive twin white birch visible from rd. 4 cold to warm - cold egg CB II called control - later 3 eggs and CB on set II 5/31 12:04 AM 3 eggs O warm no bruise CB II June 1 - 11:20 AM some warm no bruise CB plan far from nest on unused nest area TJ another CB II 6/2 4:49 AM M some warm no bruise bird on nest I [23.14 x 16.84 SIBLEY] 6/3 11:06 AM M no warm no bruise bird on nest II 6/5 2:03 PM some CB on nest I no bruise 6/4 10:48 AM some CB on nest II another CB II no bruise 6/11 12:09 AM no baby - no baby 1/2 out of a loosely capped 1/2 shell. capping shell fell off when shifted egg, body come out + egg pipped A + O no bruise removed O CB II C B may have flown from nest.
Metadata · Catnum 240002
Date30 May 1969
LocalityNew Haven, Connecticut, USA
CollectorRothstein, Steve
Eggs in Set4
Specimen TypeE
Incubationhatched
Identificationbird on nest
Nest Height2.13 m (7 feet)
Nest Supportarbor vitae
Nest Settingnear hospital, twin white birch visible from road
Nest NotesMultiple observation dates from May 30 to June 11, with detailed monitoring of egg temperature and development. Final observation shows hatching occurred with partially emerged chick.
HeaderCatbird May 30
Further DetailsWFVZ 240,002 | 69-278
✦ Anecdote
This record documents an unusually detailed multi-day monitoring study of a single nest with precise timestamps and temperature observations, culminating in the observation of a partially hatched chick emerging from its shell.