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Update for Sunday, March 24, 2024

Astrid and Ares took turns guarding and/or brooding their new egg for most of the day. There were also some periods when they left the egg alone. Ares provided food for Astrid at least twice during the day and one mating was observed. Late in the day Ares got very upset about an intruder. As often happens, when he has difficulty escorting an intruder out of the territory, he fetches Astrid (the big guns). We did not see the action in the sky but it seemed like Astrid dealt with the problem. We expect the second egg to be laid sometime tomorrow evening.

Update for Saturday, March 23, 2024

We had a rather potent winter storm today. However, it didn’t seem to hamper the falcons’ breeding behavior very much. Astrid laid the first egg of the season at 9:25 AM – the very first day of her traditional egg-laying window! After a couple of contractions and one large push, she produced the egg. Ares got to see it about ten minutes later. The falcons took turns in the nest for most of the day. In the early afternoon, Ares was dealing with an intruder. At one point he came back to the nest and let Astrid handle the situation. Later, Ares brought Astrid a food gift. She took it over to the hotel and had it for lunch. He brought her a second gift a few hours later.

Update for Friday, March 22, 2024

It was another very cold day in the Canyon with some snow flurries. However, the snow did not hamper the Peregrines very much. We observed about 5 or 6 matings, two food exchanges, and three or four ledge displays. Quite a few times today Astrid & Ares switched at the box as if they were engaged in incubating eggs. Speaking of which, we are now only one day out from the start of the egg-laying window.

Update for Thursday, March 21, 2024

Astrid spent most of the night in the nestbox. She did a few long sittings in the box during the course of the day – despite the cold and blustery weather. Interestingly, they did practice incubation switches at least a half dozen times. They are obviously anticipating the arrival of a clutch of eggs. Of course, exactly when that will start happening, we can’t say, but we are now two days outside of the egg-laying window.

Update for Wednesday, March 20, 2024

Persistent wintery weather continues to suppress the falcons’ breeding activities. However, Astrid did three sittings in the box today, which could mean that the laying of egg # 1 is not that far off. Having said that, we are still 3 days outside of Astrid’s traditional egg laying window.