Costa's Hummer Summary

Dennis Paulson dpaulson at
Mon Sep 18 11:10:40 PDT 2000

Don Norman asked to forward this to tweeters.

>A Costa's Hummingbird in Shoreline, WA


>Donald Norman, Norman Wildlife Consulting


>On 25 April 2000, a male Costa's hummingbird was observed in the garden of

>the author in Richmond Beach in Shoreline, WA. Several large windstorms from

>the south preceeded the appearance of the bird, which remained in the area

>until at least 17 May. The bird was seen by a large number of persons, but

>eluded capture for more detailed examination. There were at least 6 feeders

>up in the area at the time, and Anna's hummnigbirds are resident in the area

>due its location close to Puget Sound. On 2 May, a male Rufous Hummingbird

>showed up, which is seen irregularly in the area in the summer. Rufous were

>seen earlier during migration on 2 March, harassing the resident Anna's. On

>5 May a female Rufous was present, and by 9 May, 2 females. On 18 May, the

>male was seen displaying, and birds were seen regularly.


>The Costa's fed extensively on the yellow flowers of overwintering Brassicas

>in the garden, and was also observed to flycatch extensively from a regular

>perch. As the male Rufous asserted dominance over the feeder, the Costa's

>and Anna's were seen less than prior to 2 May. Observations on the feeder,

>adjacent to the kitchen in the house, allowed the documentation of the

>arrival of the Anna's at dusk, followed by the Costa's, after what was

>assumed to be the last feeding by the Rufous for the evening. On one

>occasion, it was observed that the Anna's and Costa's appeared from nearly

>ground level to feed.


>Apparently, this is the 2nd record for the state, and reports of other

>Costa's were received during the same period??



>Donald Norman

>Norman Wildlife Consulting

>2112 NW 199th Shoreline, WA 98177

>(206) 542-1275

>Emergency Cell 206-799-1749


> Wildlife and Environmental Toxicology


>Board President, Adopt a Beach

>The Good Sheperd Center in Wallingford

>4649 Sunnyside Ave N Suite 305

>Seattle, WA 98103


>(206) 632-1390 FAX 632-1589

>Toll Free (888) 57-BEACH e-mail aab at


>"Anyone can Adopt a Beach!"

Dennis Paulson, Director phone 253-879-3798
Slater Museum of Natural History fax 253-879-3352
University of Puget Sound e-mail dpaulson at
Tacoma, WA 98416

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