Day 13 — Incubation Day Four Begins

Today marks Day 4 of incubation for the House Finch nest. The female was a low-contrast tucked shape at the nest as evening settled in, with activity noted as late as 23:59.

The female took a 25-minute break from the cup, departing at 20:28 and returning at 20:53. A feeding visit was observed at 17:09.

Compared to yesterday, overall activity around the nest was lower, with a decrease of 124 frames showing birds present. The male was not captured visiting the nest today, a change from yesterday’s single recorded visit.

Highlight of the day

An adult House Finch is visible on its nest, which contains eggs, at 15:39 PT.

Day 13 by the numbers

• Motion clips: 250
• With birds in frame: 248
• Both adults in frame: 0
• Bird-free frames: 2
• Peak hour: 23:00
• First to last activity: 15:39 → 23:59 PT
• Weather: high 34°C, low 13.9°C, 14h 44m daylight, wind to 16.5 km/h, no precipitation

Watching for tomorrow: 9 days until the June 19-21 hatch window.