Bird Alliance of Oregon Backyard BioBlitz Report: June 2, 2020

By Bob Sallinger, Conservation Director

Thank you for participating in week four of the Bird Alliance of Oregon Backyard BioBlitz. 

We had 92 reports submitted in the sixth week of the Backyard BioBlitz. We will be continuing to do the BioBlitz each Tuesday for the rest of the summer so please keep participating and inviting your friends.

We have summarized the data from the first six weeks below so that you can see what other folks are seeing. This week, migration is starting to wind down and local nesting is at its peak. Look for young birds learning to fly around your home and neighborhood. Crows hit an all-time high for any species in the BioBlitz with 82% of participants seeing them—not surprising given that young crows are fledging right now (leaving the nest). The parents and siblings from last year will take care of young crows as they learn to fly in what is often a raucous display. Northern Flickers took a big leap upward with 37% of people reporting them. Flickers, one of our most common urban woodpeckers, are around all year round so it might be that people are noticing them more because they are more active feeding and caring for their young. They have distinctive call that you can hear here.

The following is a summary of species reported on April 28, May 4, May 12, May 19, May 26, and June 2. (Species and the percent of participants reporting. (— indicates that species was not tracked this week)

A male Northern Flicker perches on a branch with tree branches in the background.
Northern Flicker, photo by Hayley Crews

Birds April 28 May 4 May 12 May 19 May 26 June 2
American Robin 76% 53% 55% 56% 48% 54%
American Crow 72% 71% 76% 76% 71% 82%
Black-capped Chickadee 66% 67% 65% 64% 64% 74%
Anna’s Hummingbird 62% 73% 71% 71% 76% 78%
Dark-eyed Junco 56% 57% 54% 58% 62% 55%
Song Sparrow 53% 60% 68% 60% 69% 63%
California Scrub Jay 49% 42% 42% 45% 34% 41%
House Finch 46% 55% 55% 56% 56% 61%
Spotted Towhee 44% 35% 52% 48% 49% 50%
Steller’s Jay 40% 40% 37% 39% 46% 40%
Bushtit 37% 34% 27% 24% 25% 23%
Mourning Dove 30% 20% 25% 26% 22% 7%
Lesser Goldfinch 30% 43% 40% 41% 42% 50%
Downy Woodpecker 29% 24% 27% 36% 18% 28%
American Goldfinch 29% 38% 24% 27% 32% 29%
European Starling 26% 30% 34% 33% 25% 37%
Red-breasted Nuthatch 25% 26% 26% 25% 26% 38%
Bewick’s Wren 22% 15% 17% 22% 15% 14%
House Sparrow 22% 23% 21% 19% 21% 20%
Rufous Hummingbird 21% 32% 14% 19% 16% 16%
Yellow-rumped Warbler 20% 6% 1% 1% 0% 1%
Mallard 18% 12% 12% 13% 7% 9%
White-crowned Sparrow 16% 14% 13% 9% 11% 7%
Red-tailed Hawk 15% 7% 5% 7% 6% 8%
Canada Goose 15% 10% 5% 11% 5% 3%
Pine Siskin 13% 14% 5% 7% 10% 7%
Vaux Swift 12% 15% 13% 12% 9% 11%
Red-breasted Sapsucker 10% 5% 7% 3% 6% 9%
Hairy Woodpecker 8% 9% 8% 7% 8% 4%
Band-tailed Pigeon 8% 6% 6% 5% 7% 6%
Great Blue Heron 8% 4% 3% 9% 2% 7%
Black-headed Grosbeak 7% 6% 24% 22% 23% 21%
Ruby-crowned Kinglet 7% 3% 2% 0% 1% 0%
Northern Flicker 6% 20% 8% 15% 25% 37%
Tree Swallow 6% 4% 6% 5% 7% 8%
Cooper’s Hawk 5% 5% 2% 4% 2% 5%
Brown Creeper 5% 4% 3% 3% 0% 1%
Pileated Woodpecker 5% 4% 25% 2% 6% 1%
Violet-green Swallow 4% 3% 5% 5% 7% 5%
Wilson’s Warbler  4% 9% 4% 1% 3% 1%
Orange-crowned Warbler 4% 6% 2% 1% 2% 0%
Raven 4% 3% 5% 5% 6% 3%
Western Tanager 3% 2% 10% 7% 7% 3%
Barred Owl 3% 2% 2% 4% 2% 2%
Barn Swallow 2% 2% 1% 6% 2% 2%
Golden Crowned Sparrow 2% 1% 1% 0% 0% 0%
Black-throated Gray Warbler 2% 2% 1% 2% 2% 1%
Sharp-shinned Hawk 1% 2% 1% 4% 1% 1%
Chestnut-backed Chickadee 1% 3% 2% 7% 18% 23%
Western Screech Owl <1% 0% 0% 1% 0% 2%
Green Heron <1% 0% 0% 1% 0% 0%
Peacock <1% 0% 1% 0% 0% 0%
Bald Eagle <1% <1% 1% 2% 1% 3%
Belted Kingfisher <1% <1% 1% 0% 0% 1%
Eurasian Collared Dove <1% <1% 1% 1% 7% 8%
Turkey Vulture <1% 2% 1% 3% 0% 0%
White-breasted Nuthatch <1% <1% 1% 3% 4% 7%
Red-winged Blackbird <1% <1% 1% 2% 3% 5%
Purple Finch <1% <1% 1% 2% 5% 5%
Hermit Thrush <1% 0% 0% 0% 0% 0%
Ring-necked Pheasant <1% 1% 0% 0% 0%
Rock Dove 3% 3%
Cedar Waxwing 9% 3%

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, Black Chinned Hummingbird

Also seen week of May 19: Cowbird, Mountain Chickadee, Pacific Wren , Red-winged Blackbird, Mountain Chickadee, Brewer’s Blackbird, Swainson’s Thrush, Wood Duck, Killdeer, Cedar Waxwing, Osprey

Also seen week of May 26: Cedar Waxwing, Bullock’s Oriole, House Wren, Varied Thrush. Willow Flycatcher, Common Yellowthroat, Hermit Thrush, Fox Sparrow, Swainsons Thrush

Also seen week of June 2: Varied Thrush, Brown Headed Cowbird, Willow Flycatcher, Osprey, Fox Sparrow

Mammals April 28 May 4 May 12 May 19 May 26 June 2
Eastern Gray Squirrel 39% 50% 53% 66% 58% 62%
Free-roaming Cat 23% 29% 21% 26% 25% 32%
Fox Squirrel 23% 25% 29% 28% 22% 25%
Douglas Squirrel 15% 20% 24% 25% 22% 26%
Bat Species  5% 4% 2% 5% 2% 1%
Raccoon 3% 5% 8% 11% 8% 11%
Coyote 3% 1% 2% 3% 1% 1%
Opossum <1% 2% 3% 3% 2% 2%
Red Fox <1% 0% 0% 0% 0% 0%
Beaver <0% 0% 1% 1% 0% 0%
River Otter 0% 0% 0% 1% 0% 0%
Brush / E. Cottontail 11% 20% 17%
Black-tailed Deer 3% 1% 1%
Townsend’s Chipmunk 5% 7% 3%
Striped Skunk 2% 0% 0%

Also seen on April 28: Brush Rabbit, Chipmunk, Norway Rat, Grey Fox, Nutria, California Ground Squirrel

Also seen on May 4: Townsend’s chipmunk, striped skunk, brush rabbit, eastern cottontail rabbit, mole, deer

Also seen on May 12: Townsend’s Chipmunk, Brush Rabbit

Also seen on May 19: Nutria, Mole

Also seen on May 26: Vole species, dog

Also seen June 2: California Ground Squirrel. Mice species, Vole species, Nutria

 

Insects April 28 May 4 May 12 May 19 May 26 June 2
Bumblebee 46% 59% 51% 60% 60% 71%
Honey Bee 37% 47% 47% 51% 61% 65%
Mason Bee 23% 29% 20% 15% 11% 17%
Common Green Darner 1% 4% 2% 1% 0% 8%
White Cabbage Moth 14% 16%

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

Other insects observed on May 19: Spider species, Cucumber Beetles,  Hoverflies, Water Strider, Sweat Bees, Wasps Syrphid  Flies. Ladybugs, Fly Species, Ant Species, White Cabbage Moths, Cranefly

Other species observed on May 25: Spiders, Moths, Flies, Cucumber Beetles

Other species observed on June 2: Damsel Fly. Spiders, Ants, Ladybugs. Dragonflies (Common Whitetail), Hover fly, Sweat Bee, Cutworm Moths, Soldier Beetles, Various Butterfly Species

Reptiles and Amphibians Observed:

Week of May 4: Ensatina Salamander

Week of May 12: Garter Snake

Week of June 2: Garter Snake

Photo of the Week

Eight-spotted skimmer in NW Portland posted by Mike Houck on the Backyard BioBlitz Facebook page.

Tip of the Week: Keep Cats Safe at Home

For the next couple of weeks there will be lots of young birds fledging (leaving the nest). Birds are particularly vulnerable during this time of year. Many leave the nest before they can fly and can spend up to a week on the ground. It is a particularly important time of year to keep cats safe at home. Predation by cats is the number one cause of intake at Bird Alliance of Oregon’s Wildlife Care Center at this time of year. Bird Alliance of Oregon has partnered with the Feral Cat Coalition of Oregon for many years on a Cat’s Safe at Home Campaign. You can go to our joint website to learn more about ways to keep birds and cats safe around your home: https://www.catssafeathome.org/

Catio Tour, photo by Tara Lemezis

To Participate in the Bird Alliance of Oregon Backyard BioBlitz, 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.

Species Shout Out: Short 2 minute presentations on local bird species with Bird Alliance of Oregon naturalist, Greg Smith. This week’s species: Downy Woodpecker.

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.