| Birds | April 28 | May 4 | May 12 |
| American Robin | 76% | 53% | 55% |
| American Crow | 72% | 71% | 76% |
| Black-capped Chickadee | 66% | 67% | 65% |
| Anna’s Hummingbird | 62% | 73% | 71% |
| Dark-eyed Junco | 56% | 57% | 54% |
| Song Sparrow | 53% | 60% | 68% |
| California Scrub Jay | 49% | 42% | 42% |
| House Finch | 46% | 55% | 55% |
| Spotted Towhee | 44% | 35% | 52% |
| Steller’s Jay | 40% | 40% | 37% |
| Bushtit | 37% | 34% | 27% |
| Mourning Dove | 30% | 20% | 25% |
| Lesser Goldfinch | 30% | 43% | 40% |
| Downy Woodpecker | 29% | 24% | 27% |
| American Goldfinch | 29% | 38% | 24% |
| European Starling | 26% | 30% | 34% |
| Red-breasted Nuthatch | 25% | 26% | 26% |
| Bewick’s Wren | 22% | 15% | 17% |
| House Sparrow | 22% | 23% | 21% |
| Rufous Hummingbird | 21% | 32% | 14% |
| Yellow-rumped Warbler | 20% | 6% | 1% |
| Mallard | 18% | 12% | 12% |
| White-crowned Sparrow | 16% | 14% | 13% |
| Red-tailed Hawk | 15% | 7% | 5% |
| Canada Goose | 15% | 10% | 5% |
| Pine Siskin | 13% | 14% | 5% |
| Vaux Swift | 12% | 15% | 13% |
| Red-breasted Sapsucker | 10% | 5% | 7% |
| Hairy Woodpecker | 8% | 9% | 8% |
| Band-tailed Pigeon | 8% | 6% | 6% |
| Great Blue Heron | 8% | 4% | 3% |
| Black-headed Grosbeak | 7% | 6% | 24% |
| Ruby-crowned Kinglet | 7% | 3% | 2% |
| Northern Flicker | 6% | 20% | 8% |
| Tree Swallow | 6% | 4% | 6% |
| Cooper’s Hawk | 5% | 5% | 2% |
| Brown Creeper | 5% | 4% | 3% |
| Pileated Woodpecker | 5% | 4% | 25% |
| Violet-green Swallow | 4% | 3% | 5% |
| Wilson’s Warbler | 4% | 9% | 4% |
| Orange-crowned Warbler | 4% | 6% | 2% |
| Raven | 4% | 3% | 5% |
| Western Tanager | 3% | 2% | 10% |
| Barred Owl | 3% | 2% | 2% |
| Barn Swallow | 2% | 2% | 1% |
| Golden Crowned Sparrow | 2% | 1% | 1% |
| Black-throated Gray Warbler | 2% | 2% | 1% |
| Sharp-shinned Hawk | 1% | 2% | 1% |
| Chestnut-backed Chickadee | 1% | 3% | 2% |
| Western Screech Owl | <1% | 0% | 0% |
| Green Heron | <1% | 0% | 0% |
| Peacock | <1% | 0% | 1% |
| Bald Eagle | <1% | <1% | 1% |
| Belted Kingfisher | <1% | <1% | 1% |
| Eurasian Collared Dove | <1% | <1% | 1% |
| Turkey Vulture | <1% | 2% | 1% |
| White-breasted Nuthatch | <1% | <1% | 1% |
| Red-winged Blackbird | <1% | <1% | 1% |
| Purple Finch | <1% | <1% | 1% |
| Hermit Thrush | <1% | 0% | 0% |
| Ring-necked Pheasant | – | <1% | 1% |
Also seen week of May 4: Turkey Vulture, Rock Dove, Purple Finch, Warbling Vireo, Cowbird, American Kestrel, Wood Duck, Red-breasted Nuthatch, Chestnut-backed Chickadee, Winter Wren, Osprey, White Pelican
Also seen the week of May 12: Northern Oriole, Great Horned Owl, Wood Ducks, Chipping Sparrow, Rock Dove, Brown-headed Cowbird, Evening Grosbeak
| Mammals | April 28 | May 4 | May 12 |
| Eastern Gray Squirrel | 39% | 50% | 53% |
| Free-roaming Cat | 23% | 29% | 21% |
| Fox Squirrel | 23% | 25% | 29% |
| Douglas Squirrel | 15% | 20% | 24% |
| Bat Species | 5% | 4% | 2% |
| Raccoon | 3% | 5% | 8% |
| Coyote | 3% | 1% | 2% |
| Opossum | <1% | 2% | 3% |
| Red Fox | <1% | 0% | 0% |
| Beaver | <0% | 0% | 1% |
Also seen on May 4: Townsend’s chipmunk, striped skunk, brush rabbit, eastern cottontail rabbit, mole, deer
| Insects | April 28 | May 4 | May 12 |
| Bumblebee | 46% | 59% | 51% |
| Honey Bee | 37% | 47% | 47% |
| Mason Bee | 23% | 29% | 20% |
| Common Green Darner | 1% | 4% | 2% |
| Tiger Swallowtail | 0% | <0% | 2% |
Other insects observed on May 4: White cabbage moths, earwig, phidippus jumping spider, stinkbug, wasp, lady bugs, box elder bugs, gnats, crane flies, painted lady butterfly, various ant species, various moth species, various butterfly species, various spider species,
Other insects observed on May 12: White Cabbage Moths, Crane Fly, various wasp species, various spider species. Various fly species, various ant species
Reptiles and Amphibians Observed:
Week of May 4: Ensatina Salamander
Week of May 12: Garter Snake
Photo of the Week:
This photo of a Raccoon was taken by Melissa Freels in on our Backyard BioBlitz Facebook Page.
Checkout this great video of Anna’s Hummingbirds posted to our Backyard BioBlitz Facebook Group Page.
Tip of the Week:
Many mammals are raising their young on our urban and suburban landscapes at this time of year. This includes squirrels, chipmunks, rabbits, opossum, raccoons, skunks foxes, coyotes, deer, bobcats and bats. Mammals use not only our parks and natural areas, but will also den right in our yards and neighborhoods. Sometimes they get a little too close for comfort utilizing attics and crawl spaces. The following are important tips for coexisting with mammals:
- Never intentionally feed wild mammals. It causes them to lose their instinctual fear of humans and can lead to bigger problems. Although it may seem kind, feeding wild mammals often leads to the kind of conflicts that results in their removal from the environment.
- Enjoy wild mammals from a distance but to not try to approach or tame them down.
- If you find a young mammal, do not assume that it is orphaned. A parent is often close by but may not return until humans leave the immediate area. Before rescuing an animal you think may be orphaned please call our Wildlife Care Center (503-292-0304) for advice.
- Keeps dogs on leash when you visit parks and natural areas (unless it is a designated off-leash areas. Many orphaned mammals are caused by dogs running free in natural areas and disrupting dens and separating young from their parents.
- Close up openings to attics, basements and crawlspaces. Prevent access to indoor spaces is one of the most effective ways to prevent problems.
- Avoid trapping and relocating of wild animals, especially in the spring. Animals often do not survive relocation and at this time of year, it often results in orphans being left behind. If you are having a problem with a wild animal, contact the Bird Alliance of Oregon Wildlife Care Center (503-292-0304) for advice on how to resolve the conflict or visit our Living with Wildlife page at https://birdallianceoregon.org/our-work/rehabilitate-wildlife/having-a-wildlife-problem/
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.
