December 31, 2005

2005 post-season summary

Downtown Seattle - Washington Mutual Tower

After the unidentified pair abandoned the nesting attempt at the IBM building, summer observations were scarce, until July. We believed that Bell probably died either in the winter or early in the breeding season, but on July 27, we confirmed (by her VID band) that a dead peregrine on the roof of a condo in downtown Seattle Avenue was Bell. The roof had been checked about a week earlier, and she was not there then. She died two blocks from her home cliff on the Washington Mutual Tower, where she fledged a total of 26 young from 1995 to 2004.

Her cause of death is unknown. We don't know if the pair of adults that appeared on the WaMu Tower around the same time was responsible for her death or if the timing was a coincidence. The new female is not banded; the male's band status has not been confirmed yet. They have been observed on the nest ledge every week since July, and we expect that they will breed this spring.

(Read more about Bell here)

West Seattle - finally!

After years of waiting since the first attempt in 1999, four young--a male and three females--fledged from the West Seattle site in late June. The current female finally had a "full time" mate who did what male peregrines are "supposed" to do. It was a joy to watch the young grow up.

When she was still fluff and feathers and not ready to fly, one female eyas fell off the nest platform and apparently helicoptered to the pavement below. Someone grabbed her, put her in a box, and took her to Pioneer Square that evening. He was showing off "his" bird, when the police intervened and rescued her. We have seen a lot of fledgling "drama" over the years, but we never imagined this scenario! She stayed at a rehab center until she was ready to fly; she was then released and joined her siblings and parents. A second female also spent a few days at a rehab center, after she was found wandering on a busy road near the nest; she was released at the same time as her sibling. The third female and the male fledged uneventfully.

Ship Canal Bridge

Three young fledged from the bridge in early June - two females and a male. One of the young females promptly got into trouble with the local crows and ended up in a bush in a restaurant parking lot. When she was rescued, it was noticed that she had a slightly deformed mandible. Because of concerns about the beak deformities that have been observed in Washington State, she stayed at a wildlife care center for a short time for further observation, but was then released at her home territory. We don't know the whereabouts of the young birds at this time.

Grain Terminal

After this pair fledged four young in 2003 and three last year, it was disappointing that they only fledged one - a male. Several weeks post fledging, he was found dead on a seldom-visited part of the structure, wrapped in fishing line. The grain terminal is at the edge of Elliott Bay, just south of a public fishing pier. It is all too easy to imagine him getting tangled in discarded line, flying up onto the structure wrapped in it and trapping himself fatally in his attempts to get free. This was a very sad and graphic demonstration of the harm that discarded fishing line can cause.

Eastside

When the breeding season began, our same eastside adults from the previous two years were together at their nest site and appeared to be incubating. We don't know when an unbanded adult male replaced the original male (Washington Mutual 2002). The new male and the female incubated, but the nest failed. We didn't know what happened to the original male until the end of November, when Department of Transportation crews found him dead in a crevice in a bridge on I-90.We don't know when he died.

Since the Breeding Season

We have seen our resident west side pairs regularly on their breeding territories, except at the Grain Terminal, where sightings have been scarce. However, this pair was also hard to locate last winter.

We may have a new breeding pair this spring - at the Ballard Bridge. This would be a first - the nest box there has only hosted Canada Geese and Glaucous-winged Gulls in the past. Since both birds are banded, we know that they are hatch year 2004. The male is the offspring of the birds at the I-5 Ship Canal Bridge. His father is from the WaMu nest, so he is Bell and Stewart's grandson, in human terms. The female fledged from a nest box atop a crane at the Port of Olympia. They were first reported together at the Ballard Bridge in September. A lot can happen between now and the breeding season, but it certainly looks like this pair will breed.

We have had sightings of single birds and pairs at several other locations in the last few weeks. As usual at this time of year, it is difficult to determine what might be a wintering pair and what might be a pair that will stay and try to nest. Spring will be here soon, and then we will find out. We hope for successful seasons for all our pairs.