Figure 2 | Scientific Reports

Figure 2

From: The impact of anthropogenic noise on individual identification via female song in Black-capped chickadees (Poecile atricapillus)

Figure 2

Illustration of the operant conditioning chamber, including: (A) speaker, (B) automated feeder, (C) request perch fitted with infrared photo-beam assembly, (D) feeder cup, (E) electrical inputs, (F) red LED, (G) water bottle, (H) and cuttlebone. Also shown is the feeder opening, and additional perches. To simplify, the sketch the front and floor of the chamber, and the enclosure's acoustic lining are not included.

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