Field Notes · Catnum 240595 · score 20 — high uncertainty
Apr. 20, 9:05 AM. Channel between second pin to the west - at SW part of the 4' up pole of large twigs. 9:10 AM, 5' up in port second from end at W side - looks like cardinal, one cold egg in SW side of the nest. 4/27 - 8:25 AM - 3 cold warm eggs. 4/28 10:05 AM, nest fallen. House's long piece of down constantly stuck to 0-2 intact eggs on ground. Collected. 10:08 AM some pulled at down. Network of blood vessels - 1 eye. Small embryo in one.
Metadata · Catnum 240595
Date22 Apr 1968
LocalityNew Haven, Connecticut, USA
CollectorRothstein, Steve
Eggs in Set3
Specimen TypeE
Incubationcommenced
Identificationunknown
Nest Height1.22 m (4 feet)
Nest Supportpole
Nest Materialslarge twigs
Nest Liningdown
Nest Settingchannel between second pin to the west
Nest NotesNest fell on April 28th. Observer found 0-2 intact eggs on ground with network of blood vessels visible and small embryo with one eye developed in one egg.
HeaderNo 5. | S. maples
Further Details68-45
✦ Anecdote
This record documents the unusual event of a nest falling during the observation period, with the collector finding partially developed eggs on the ground and noting specific embryonic development details including blood vessel networks and eye formation.