Date: Sunday, April 21, 2013
Weather: Pouring rain and windy
Temperature: ~45ºF
Time: 9:00-11:00 AM
Location: Union Bay Natural Area, Seattle, WA
Perhaps it’s just me, but my observation site seems a touch greener every time I visit. Here’s a quick peek at my observation site!
Perhaps it’s just me, but my observation site seems a touch greener every time I visit. Here’s a quick peek at my observation site!
My observation site getting greener by the week!
Despite the pouring rain, I found a relatively
dry spot underneath a Black Cottonwood (Populus trichocarpa) to make my
observations. Thank goodness for its wide coverage! My presence scared off a White-Crowned Sparrow (Zonotrichia leucophrys) who had been
perched on a twig of the Black Cottonwood tree. The forest floor was washed
clear of the catkins and flower petals I saw last week, so two sights
immediately became apparent to me. Firstly, the Common Horsetail field has grown once again and literally every
surface my observation site is now covered with its stems. Within the field, two
Savannah Sparrows (Passerculus sandwichensis) making high-pitched buzzing noises were foraging for food on the ground, but when they met each
other, I was surprised to see them aggressively peck at each other and then
part ways. Perhaps they were displeased with the sight of another sparrow on “their”
territory. Secondly, a Pacific Willow (Salix lucida) has
come into view. In fact, it was growing right next to the spot I usually stand
at to make observations. It has found an ideal location, right on the bank of
Lake Washington.
A new Pacific Willow starting to grow in a
cluster.
With the significant amount of rain this
week, it was clear that the water level of the marsh has risen and a green plant
has begun to proliferate in the water. It looks a type of grass (the leaves are
sheathed) and the leaves are oblong with parallel veneration. I believe it is
an invasive plant, but it will need to be identified. The extra rain was
appreciated by other plants too. Many of the clumps of forest grass have also
grown to my calf height in just a week and a patch of Dandelions (Taraxacum
officinale) have taken root next to the Pacific Willow.
The heavy rain made it difficult to look for
birds because they were all hidden among the Broadleaf Cattails, but as a result, I was forced to use my ears
for observation. There was quite a cacophony of sound!
The Broadleaf Cattail is home to many birds and
a good perching location.
I finally recognized the sound of a Red-Winged Blackbird. Its high pitched cheek-teek-teek sound is something that
I have been hearing every time I visit my observation site, but I finally saw
it making its call as it flew out of the cattails. In addition, there was a
dull thumping noise followed with a pick-pick
noise. My best guess is that it was a Downy
Woodpecker (Picoides pubescens) excavating
a tree cavity to build its nest. I also heard the noises of a pair of Canadian Geese. I believe they also
have a nest in the cattails because each week I see two Canadian Geese skimming
the waters of Lake Washington and swimming to and from the cattails.
And for the finale, it is time to utilize the
plant identification skills I have learned within the past two weeks! The pink
flowers I had mentioned in my week 1 post are actually Red-Flowering Currant (Ribes
sanguineum). Today I also noticed another invasive plant at the base of the
Black Cottonwoods – Himalaya Blackberry (Rubus armeniacus). The thicket may also
be home to some birds, so I’ll have to make sure to peek inside next week! It
is quite amazing to see how well the clusters of Black Cottonwood trees in my
observation site are able to grow despite the antagonistic pressures from the English Ivy and Himalaya Blackberry.
An invasive plant to the Pacific Northwest – the
Himalaya Blackberry.
A little farther inland I found a shrub of Snowberry (Symphoricarpos albus) with its classically, irregularly lobed leaves.
It had been hiding among a thicket of Himalaya Blackberry. Its flat leaves
provide a perfect surface for water droplets to collect, so I wonder if small
birds or insects use this as a water collection source.
A Snowberry shrub with a few mitten-shaped
leaves.
Nearby was also a Tall Oregon Grape (Mahonia aquifolium) growing underneath a tree that I had trouble
identifying. This is the tree I had mentioned in previous weeks with white
flowers. It could be a Pacific Crabapple
(Malus fusca), but it seems to
have bloomed a little earlier than expected, so I might have to wait and see.
A Pacific Crabapple? The white flowers have come
and gone.
It seems like the only plant I could recognize
initially was the Common Horsetails, but with a few classes in the field, I
have found that there are many more plants to recognize and share about. For a
field guide to the plants in Union Bay Natural Area, take a look at the new tab
that I've created. It’ll be a growing list!
**A correction is due
thanks to a helpful colleague on iNaturalist! The turtle observed last
week is actually an Eastern Painted
Turtle (Chrysemys picta) because
of its smooth shell. The Western Pond Turtle has scutes with a mottled color.