Jeremy Gatten – The Naturalest Naturalist and Aquilegia chrysantha |
Any excuse
for exploring my favorite corner of Arizona will do, so when Jeremy Gatten of
Victoria, BC emailed me out of the blue and presented his own naturalist
history blog as credentials – The
Naturalest Naturalist – as well as our connection with the Peru Birding
Rally Challenge (he won a free spot on the press van on last year’s event) – I
said I’d be happy to join him. He was going to be in Phoenix for a course on
bats and would do some birding on his own before it, but he was especially
interested in looking at butterflies, dragonflies, and other critters if I were
available afterward. I suggested the southward-flowing drainages of the
Atascosa-Pajarito Mountains on the border, and I also proposed we camp in order
to try for Buff-collared Nightjars.
So the day
after Anthony and I birded the Chiricahuas, Jeremy stopped by my place before
dawn, and we made a bee-line for Ruby Road, starting on the west end at
Arivaca. Of course, we found it impossible not to stop and made two random
pauses on Arivaca Road where Gray Hawks screamed, Rufous-winged Sparrows were in
pairs everywhere, migrant Lark Sparrows were in flocks of a hundred or more, and
a distant Crissal Thrasher was in full song. Once beyond Arivaca, we saw two
Antelope Jackrabbits (the first 2 miles of Ruby Road are the best place I know for
this species), made a quick stop hoping for Thick-billed Kingbird in Oro Blanco
Wash (a very birdy spot with migrants such as MacGillivray’s Warbler and
Green-tailed Towhee, but no kingbird), and then stopped just when we got into
the oaks just short of the watershed divide.
As soon as
we got out of the car, I heard the distinctive whistles and proceeded to show
Jeremy how to whistle in Montezuma Quail. This male came right up to us after
just about 2 minutes of whistling. There was another nearby that wasn’t quite
as close and at least three more about 100 yards away on another hillside.
By the time
we left here at 8:00 a.m., we had already seen and heard nearly 70 species of
birds, and we still hadn’t even started down California Gulch yet. I had Jeremy
come to a stop when I saw these blooming Huachuca Mountain Rocktrumpet, Macrosiphonia brachysiphon just above
the California Gulch Road. They were still quite fragrant, but at night the
heavenly scent of a single flower can perfume a large room.
We were
hoping for odonates (dragonflies and damselflies) when we stopped just below
the upper dam in California Gulch, but it was still too cool; a cold front had
just passed through making the temperatures very pleasant for us. This bold Vermilion
Flycatcher was fun to watch in any event.
I made
Jeremy stop for another plant on the side of the road, this Pine-needle
Milkweed, Asclepias linaria, an
individual plant I know well, as it’s been here for years.
There were a
few flowers, but I was looking for moths and bugs. There were some Oleander
Aphids, Aphis nerii, common on almost
any type of milkweed.
And probably
not a coincidence nearby was this Spotless Lady Beetle, Cycloneda sanguinea.
We then
spent the next couple of hours exploring the highest part of the California
Gulch Road where it overlooks Old Glory Wash and its confluence with Warsaw
Canyon. Before long we saw Five-striped Sparrows here, but we had to scramble down
the slope to see them well. One of the rather tropical plants in this same area
is Doll's Head, Lagascea decipiens,
one of my favorite composites. What you are seeing in this photo is a cluster
of single-flowered heads at the end of a branch. Each showy little flower is
subtended by its very own phyllaries, a highly unusual arrangement in
Asteraceae.
This plant
bug nymph is probably in the genus Largus.
Even adults are difficult to identify to species.
There were
several grasshoppers in the diverse desert scrub, and we still don’t have a
name for most. All appeared to be band-winged grasshoppers, subfamily
Oedipodinae. During the summer rainy season and fall, this subfamily is far
outnumbered by spur-throated grasshoppers, Melanoplinae, so it’s interesting
that we didn’t see any of those. This distinctive one is either Leprus wheeleri or Leprus intermedius; the shape of the pronotum seems to point to the
latter, called Sassure’s Blue-winged Grasshopper, but then color of the hind
wing seems better for Wheeler’s. I’ll defer to Dave Ferguson on Bugguide when
he gets a chance..
This bee fly
appears to be Exoprosopa butleri, but
an expert on Bugguide will have the final say. Bee flies often perch and have
field marks, so despite their parasitoid lifestyle, the field ID of them is a
lot like damselflies. You just need a good macro lens and patience.
This Macdougal's
Nipple Cactus, Mammillaria macdougalii closely
resembles Pancake Cactus.
This Purple
Scalystem, Elytraria imbricata is
impressive only if you look very closely. It’s amazing that it could have such
profuse blooms in this parched, limestone outcropping with such little rain
this winter.
Doctorbush, Plumbago zeylanica. This rather tropical
genus of plants just barely makes it into the US in SE Arizona, Texas, and
Florida, and here only in a few localities. I have no idea why it has that
common name; maybe someone imagined
“Zhivago” in the scientific name?
We scrambled
to a small but prominent peak above the road and found it to have not only this
fabulous view, but also some hilltopping insects.
A
hilltopping Mormon Metalmark, Apodemia
mormo. (The English name is a conflagration of the specific epithet, which
means “dark,” but that’s how a lot of common names of butterflies have been
coined. Take the skipper Carrhenes
bamba, for example; it’s called Ritchie Valens’ skipper since he
made the song La Bamba famous, but
that’s probably a Jim Brock invention.) [Update: Jeremy looked into this one further and found that it is actually a MEXICAN METALMARK, Apodemia mejicanus mejicanus! I'm sure I've seen this in Arizona before, but it's been so many years, I totally forgot about that as an option.]
A Mournful
Duskywing, Erynnis tristis. Unlike
the Paciuvius from the Chiricahuas, this one is trickier to identify, looking
especially similar to Funereal, but it helps that this is a fresh individual
with brightly colored forewing patches and a nice, bright hindwing fringe.
This Pahaska
Skipper, Hesperia pahaska was one of
two very territorial ones on the hilltop.
I don’t know
if this bee fly, Poecilanthrax
poecilogaster was also hilltopping or just on a typical territory.
Finally a
few more plants that were in this area: the usually spineless and often
purple-stemmed Santa Rita Prickly-pear, Opuntia
santa-rita. The flowers were full of tiny thrips, but they were too small for
me to get a good photo.
This plant I
recognized from the Galapagos, Waltheria
indica, with Uhaloa being the common name on the plants.usda website, which
I don’t quite understand. It’s ok for the plants native to Hawaii, but should
we be also changing the name of our Short-eared Owl here to Pueo? In any event,
when I first learned this plant it was still in Sterculiaceae, the same family
as cacao, but that whole family is now lumped into the mallow family,
Malvaceae. I always thought this one looked more like a mallow anyway. It just
barely makes it into a few southern states in the US.
There are
more Daleas (prairie-clover) than you can imagine in Santa Cruz county. This is
almost certainly Dalea pringlei, but
the traditional botanical keys don’t let you just look at flowers – you need
fruits, stems, leaves, and in some cases even roots to see whether it’s an
annual or perennial.
This one is
also pretty much a guess, Dalea pulchra,
Santa Catalina Prairie Clover. It’s rather shrubby and weedy but very attractive
up close.
This takes
us up until about noon only on this really full day of natural history
exploration. I’ll cover the latter half of the day in the next blog.