Field Notes · Catnum 57945 · score 6 — moderate uncertainty
Composed of grass stems and mud, mixed with fine grass. Situated on a steel girder of a railroad bridge, 20 feet from the tracks and thirty feet from the ground. The railroad is used rarely. This is the third nest I've taken from this bridge in similar situation.
Metadata · Catnum 57945
Date26 Apr 1901
LocalityVolunteertown, Philadelphia, Pennsylvania, USA
Coordinates40.052547, -75.100561 ↗ map
CollectorMiller, Richard F.
Eggs in Set4
Specimen Typee
Incubationfresh (transcribed as “all fresh”)
Identificationflushed (transcribed as “female seen; flushed from the nest.”)
Nest Height9.14 m (30 feet)
Nest Supportsteel girder of a railroad bridge
Nest Materialsgrass stems, mud
Nest Liningfine grass
Nest Settingrailroad bridge
Nest NotesLocated 20 feet from the tracks on a rarely used railroad. This is the third nest the collector has taken from this bridge in similar situation.
Further Details4-Oct
✦ Anecdote
This collector has repeatedly found American Robin nests on the same railroad bridge, suggesting the site has become a favored nesting location despite the industrial setting.