When I was growing up we had a large dogwood tree in the
backyard that produced a good crop of berries almost every year. I remember
just watching that tree for extended time periods and being amazed at the
diversity of birds that visited to dine on the berries. Last week I was
reminded of how attractive a productive dogwood tree can be when I visited
Sheffield Park and Idlewild Road Park in search of migrants.
At Sheffield, a flash of orange caught my eye as a female or
immature summer tanager hovered to pluck a berry from a large dogwood. Stopping
to see what else might be around, I soon observed two Swainson’s thrushes,
several American robins, a gray catbird, brown thrasher, and a rose-breasted grosbeak
partaking of that tree. I was reminded that the woods of Idlewild Road Park
have a large number of dogwoods and have been very productive in the past. I
drove on over and headed down a trail to a nice hardwood forest with dogwood
understory.
Immediately I saw a scarlet tanager in the dogwoods; then
another, and another. A total of six scarlet tanagers and an additional summer
tanager were all there. A group four
Eastern bluebirds flew in, another three Swainson’s thrushes, a wood thrush,
some American robins, a red-bellied woodpecker, a Northern flicker, and downy
woodpecker; all made for constant in and out action in the dogwood canopies.
Birds are attracted to the berries because of their red
color. It is well know that hummingbirds like red, but clearly many bird
species have the same affinity. Spicebush, a common lowland shrub, has red
berries that are favored by birds, as does magnolia.
There are plenty of other species that love dogwoods too. I
have seen gray-cheeked thrushes, veeries, red-eyed vireos, red-headed
woodpeckers, yellow-bellied sapsuckers, and even pileated woodpeckers on
dogwood. Dogwoods are clearly an important fall food source for hungry
migrants. If you have a nice dogwood on your property, or know of a nice grove
of multiple trees, take some time to watch for activity. You might see some
unfamiliar species.
Scarlet Tanager by John Ennis |
All scarlet tanagers in the fall are greenish yellow with contrasting black wings. They look quite different from the brilliant scarlet and black males from the spring.
Summer Tanager by Phil Fowler |
Female and juvenile summer tanagers are a more orangey color with less contrast between the wings and rest of the plumage.
Summer Tanager by Phil Fowler |
Adult male summer tanagers in fall retain their bright red plumage year round. If you encounter summer tanagers, the majority will be female or juvenile plumaged.
1 comments:
I would be so thrilled to see tanagers in my dogwood trees! Right now, the squirrels are the only ones who are interested in the berries!
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