Field Notes · Catnum 240536 · score 13 — high uncertainty
July 10 - 11:37 AM 6' up in vine on dead bush, 8' WSW of lab and egg CB on nest. July 11 - 7:05 AM saw CB on nest (but my hand) several birds, another CB. July 12 - 11:30 AM 2 eggs, one marked, others unmarked, 2 CB one (but my hand) other. July 13 - 10:25 AM 3 eggs (2 marked 1 unmarked) one CB hit me several times, another CB. July 15 - 12:43 AM 2 eggs both marked CB (hit me) [25.13 x 17.66 SIBLEY]
Metadata · Catnum 240536
Date13 Jul 1970
LocalityDelta, Manitoba, Canada
CollectorRothstein, Steve
Eggs in Set3
Specimen TypeE
Incubationunknown
Identificationbird on nest
Nest Height1.83 m (6 feet)
Nest Supportvine on dead bush
Nest Setting8 feet WSW of lab
Nest NotesMultiple observation dates from July 10-15, catbird repeatedly hit collector, egg measurements 25.13 x 17.66 mm
Further Details70-144
✦ Anecdote
The collector was repeatedly struck by aggressive catbirds during multiple visits to monitor this nest, indicating unusually strong defensive behavior by the parent birds.