Birds
American Robin – 76%
American Crow – 72%
Black-capped Chickadee – 66%
Anna’s Hummingbird – 62%
Dark-eyed Junco – 56%
Song Sparrows – 53%
Cal. Scrub Jay – 49%
House Finch – 46%
Spotted Towhee – 44%
Stellers Jay – 40%
Bushtit – 37%
Mourning Dove – 30%
Lesser Goldfinch – 30%
Downy Woodpecker – 29%
American Goldfinch – 29%
European Starling – 26%
Red-breasted Nuthatch – 25%
Bewick’s Wren – 22%
House Sparrow – 22%
Rufous Hummingbird – 21%
Yellow-rumped Warbler – 20%
Bewick’s Wren – 20%
Mallard – 18%
White-crowned Sparrow – 16%
Red-tailed Hawk – 15%
Canada Goose – 15%
Pine Siskin – 13%
Vaux Swift – 12%
Red-breasted Sapsucker – 10%
Hairy Woodpecker – 8%
Band-tailed Pigeon – 8%
Great Blue Heron – 8%
Black-headed Grosbeak – 7%
Ruby-crowned Kinglet – 7%
Northern Flicker – 6%
Tree Swallow – 6%
Brown Creeper – 5%
Pileated Woodpecker – 5%
Violet-green Swallow – 4%
Wilson’s Warbler – 4%
Orange-crowned Warbler – 4%
Raven – 4%
Western Tanager – 3%
Barred Owl – 3%
Barn Swallow – 2%
Golden Crowned Sparrow – 2%
Black-throated Gray Warbler – 2%
Sharp-shinned Hawk – 1%
Chestnut-backed Chickadee –1%
Western Screech Owl – <1%
Green Heron – <1%
Peacock – <1%
Bald Eagle – <1%
Kingfisher – <1%
Eurasian Collared Dove – <1%
Turkey Vulture – <1%
White-breasted Nuthatch – <1%
Red-winged Blackbird – <1%
Purple Finch – <1%
Hermit Thrush – <1%
Mammals
Eastern Gray Squirrel – 39%
Free-roaming Cat – 23%
Fox squirrel – 23%
Douglas Squirrel – 15%
Bat Species – 5%
Raccoon – 3%
Coyote – 3%
Opossum – <1%
Red Fox – <1%
Also seen: Brush Rabbit, Chipmunk, Norway Rat, Grey Fox, Nutria, California Ground Squirrel
Insects
Bumblebee – 46%
Honey Bee – 37%
Mason Bee – 23%
Common Green Darner – 1%
Photo of the Week:
This photo of a Honeybee swarm in NE Portland was submitted to our BioBlitz Facebook Page by a kindergarten teacher whose entire class got to watch online as the swarm was captured in one of her students yards by a beekeeper and transferred to a hive.
Tip of the Week:
Many baby birds including Robins, Scrub Jays, Crows and Finches, even hawks and owls, leave the nest before they are able to fly and can spend many days on the ground learning from their parents. These birds are called “fledglings.” This is an important part of their development when they learn many of their life skills. The parents will continue feeding them and caring for them during this period although they may also spend extensive periods on their own. It is tempting to try and “rescue” them but the best think you can do is leave them alone and allow them to proceed through this natural process.
These young birds can be almost fully feathered and as large as their parents so it can be hard to tell, but if you see a bird hopping around on the ground in May, it is most likely a fledgling. If you see a bird on the ground and are concerned, you can always call our Wildlife Care Center for advice at 503 292-0304. For more information, click here.
To Learn More:
Bird Alliance of Oregon BioBlitz Facebook Group Page: You can post pictures, information or questions about what you are seeing at any time on our Backyard BioBlitz Facebook Group Page. We are also posting information and opportunities to learn more about the region’s wildlife here as well.
Ask a Birder: Every Wednesday from 7-8 pm, Bird Alliance of Oregon experts will be online talking about the birds that are passing through our region and answering questions. Learn more.
Learn About Birds that Are Passing through Portland on Migration: Each week Bird Alliance of Oregon naturalist Dan van den Broek provides information about the species you are likely to see passing through.
Need Birdfeeding Supplies? The Bird Alliance of Oregon Nature Store is now online! Everything from feeders to birdseed and suet to guides and optics is available for online purchase and can be either shipped or picked-up curbside.
