Field Notes · Catnum 165809 · score 6 — moderate uncertainty
Lawndale, Philadelphia, Pa. Conrail pike and Conrail pike R.R. Collected by Richard F. Miller. Nest built on 6" flange of a big steel girder of bridge spanning Conrail Ave, 20 feet from ground and within about 18" of a track. Railroad seldom used. Directly over tier rods. Compactly made of weed and grass stems, grass blades and mud, lined thickly with dry soft grasses.
Metadata · Catnum 165809
Date05 May 1900
LocalityLawndale, Philadelphia, Pennsylvania, USA
Coordinates40.0488799, -75.0915642 ↗ map
CollectorMiller, Richard F.
Eggs in Set4
Specimen TypeE
Incubationfresh
Identificationbird seen (transcribed as “Birds seen”)
Nest Height6.1 m (20 feet)
Nest Support6 inch flange of steel girder of bridge
Nest Materialsweed stems, grass stems, grass blades, mud
Nest Liningdry soft grasses
Nest Settingbridge spanning Conrail Avenue, railroad environment
Nest NotesBridge spanning Conrail Ave, within 18 inches of seldom-used railroad track, directly over tier rods. Nest compactly made.
Further Details761 | 4-Jun
✦ Anecdote
This robin built its nest on industrial infrastructure - a steel bridge girder just 18 inches from an active railroad track, demonstrating remarkable adaptation to urban environments.