Field Notes · Catnum 104222 · score 3 — moderate uncertainty
Collected at Wallingford, Delaware Co., Penna., by Dr. Robertson. Taken on 9.V.36. Nest some seven ft. up in a lilac bush. Taken at dusk by flashlight; male on nest at time. Eggs some seven days incubated.
Metadata · Catnum 104222
Date09 May 1936
LocalityWallingford, Delaware, Pennsylvania, USA
Coordinates39.89083, -75.36333 ↗ map
CollectorStabler, Robert M.
Eggs in Set3
Specimen Typee
Incubationadvanced (transcribed as “Eggs some seven days incubated”)
Identificationbird on nest
Nest Height2.13 m (7 feet)
Nest Supportlilac bush
Nest NotesTaken at dusk by flashlight; male on nest at time
Further Details13.1
✦ Anecdote
This record is unusual because it documents a male American Robin incubating eggs, which is highly atypical behavior since females typically handle all incubation duties in this species.