Archive for July, 2013

Dream Come True: Witness to a Great Gray Owl nest

Great Gray Owl nestlings in nest Hedbom Rd Aitkin Co MN IMG_6410Two Great Gray Owlets await mommy or daddy from their lofty nest in a large Tamarack.

I had the great fortune of having a good friend who was willing to share the location of a Great Gray Owl nest he had found recently. Kim Risen is a professional bird guide based out of Tamarack, Minnesota, who leads birding trips across the globe, from South Africa to South America to Costa Rica to Mexico and even in his ‘backyard’ of northern Minnesota. Kim found this nest on a June trip with a client. He’d seen young in this general vicinity several times over several different years. He graciously shared the site with me.

I first visited the Black Spruce/Tamarack bog with Kim and his wife Cindy on June 18th and made several more visits, the last on June 28th. Two owlets were in the nest until at least June 24th, then must have “flew the coup” around June 27th or 28th when we found them on the ground.

VIDEO SHOWING BEHAVIOR & COMMENTARY ON FAVORITE PHOTOS (7 MINUTES)

You can see more of my wildlife videos HERE

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7396Note mom in the bottom left corner of the image…She was never very far away. The young were generally silent…until they saw an adult when they gave a loud screech (can hear it late in the video). But the female often gave a rising “Whoop!” call. Robert Nero, one of the world’s foremost authorities on Great Gray Owls, says this call “is often given by the female on the nest as a means of communicating with the male.” Robert Taylor, author of The Great Gray Owl: On Silent Wings calls this is “food request call” and it is given more frequently during years of low vole supplies. It likely helps the male find the female too as he delivers the food to her so she can feed the owlets. May this also be the female’s form of communication with the owlets?…”You’re okay…I’m right here.”

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7390On June 28th I went to photograph the owlets from my blind…But I saw no action in the nest. Just as I was contemplating this, I simultaneously heard my cell phone ring as well as a screech from ground level. I assumed the screech was one of the owlets who’d left the nest. It was Kim on the phone and he was in the bog and had seen the young on the ground. As he was talking I found one of the owlets ‘teed up’ on a stump… “Found one! Gotta go.” I set up my tripod and folding chair, then draped camo netting over myself and started shooting. The owlet stared at me for 20 minutes without taking its eyes off me, though its posture relaxed over this time. Then when he/she was comfortable that I was not a predator, the owlet started to look around, and even stretch.

Great Gray Owlet stretching_0002STREEEEETCH! FRAME EXTRACTED FROM VIDEO CLIP. The young Great Grays often stretched like this…Working their flight muscles I imagine. Fortunately he was facing me head on and gave me this unique perspective. [Note that when you extract a frame from a HD video clip you only get a 1920x1080pixel image to work with…and it’s shot at 1/60 second…and its basically a jpeg. Very limited use, but fine for the web].

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7389Though the owlets can’t fly at this age, they sure can get around! They will walk across the bog then climb leaning trees and stumps by using their talons for grip and using their beak to grab branches like a parrot, pulling themselves up, wings held over their back for balance.

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7390 - Version 2 (1)The ticket to not alarming wild critters is to move slowly, stay low, avoid eye contact, and talk to them in a low soft voice (don’t whisper!). And stay in plain sight so you are not mistaken for a sneaky predator. I got very close to this owlet…Close enough to use my 10-20mm lens with full flash. I love the low angle and wide perspective which really puts the owl in its habitat.

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7343

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7302Eye-level shot with Canon 400mm f5.6. I WISH I’d put my big flash and Better Beamer on! The images looked okay on the LCD but there is a weird greenish cast from the light filtering down through the canopy. Live and learn!

Great Gray Owl nestling Hedbom Rd Aitkin Co MN IMG_7410The sibling to the owlet on the stump, is this fuzzball. I found him/her on a comfy cozy patch of super-soft Sphagnum moss. I laid on my belly, crawled towards her (got soaking wet!) and inched to within a foot of her/him. He/she began bill clacking, an alarm signal, so I snapped a few photos (full flash) and backed off.

I wish this little family well and hope they find many fat voles!

[All photos and video taken with Canon 7D and Canon 400mm f5.6 lens or Sigma 10-20mm lens, Canon 580EX flash, Cabela’s Lightning Set pop-up blind, Manfrotto tripod]

Grand Slam of the Giant Silkworm Moths!

Last year I got the “Trifecta of Mega Moths” …Cecropia, Polyphemus and Luna; But this year I added the Promethea to get the GRAND SLAM!
All were photographed between my house and garage. My technique is simple…Leave the garage light on all night then go out in the morning and try (emphasize the word “try”) to move them gently to a more photogenic perch. You have to go out very early (5:30 to 6:30 am) before they warm up and fly off.

Cecropia moth Hyalophora cecropia Skogstjarna Carlton Co MN IMG_6573CECROPIA (Hyalophora cecropia) The genus is named after Cecrops I, the mythical first king of Athens, and it is certainly the KING of North American moths…It is one of the showiest and largest with a wingspan approaching 6 inches. Caterpillars are especially fond of maple leaves but also feed on tamarack, spruce, birch and cherry. Sparse population in the “wild” as there may only be a couple adults in a square mile of forest, BUT some residential populations can be quite dense. Males may FLY 20 MILES (!) over several nights, and mate with several females.

Cecropia moth Hyalophora cecropia Skogstjarna Carlton Co MN IMG_6580CECROPIA (Hyalophora cecropia)

Luna Moth Actias luna Skogstjarna Carlton Co MN IMG_7524LUNA MOTH (Actias luna) Luna the Goddess, was the ancient Roman divine personification of the Moon. Caterpillars much prefer the Paper Birch leaves in the north woods. This is my best Luna photo in a long while…Unfortunately it is on the T-111 siding on my garage. When I tried to move it, it started its flopping-Arching defense and escaped.

Promethea moth Callosamia promethea Skogstjarna Carlton Co MN IMG_7544PROMETHEA (Callosamia promethea)

Promethea moth Callosamia promethea Skogstjarna Carlton Co MN IMG_7537PROMETHEA (Callosamia promethea) Prometheus, a Titan, culture hero, and trickster figure who is credited with the creation of man from clay, and who defies the gods and gifts humanity with fire” (Wikipedia). Adults live for a week and may fly 20 miles in that time period. This is a female but the darker male is day-flying and may mimic the unpalatable swallowtail butterfly. Caterpillars feed on black cherry, ash and perhaps, lilac.

Promethea moth Callosamia promethea Skogstjarna Carlton Co MN IMG_7529PROMETHEA (Callosamia promethea)

Polyphemus moth Antheraea polyphemus Skogstjarna Carlton Co MN IMG_7850POLYPHEMUS (Antheraea polyphemus) Polyphemus is the gigantic one-eyed son of Poseidon and Thoosa in Greek mythology, one of the Cyclopes. And a semi-appropriate name as this huge moth shows one striking “eye” on each hindwing. The thought is that bird predators will attach the false eyes on the hindwings and do little damage to the moth itself. Caterpillars feed on birch, maple, willow and oak.

Polyphemus moth Antheraea polyphemus Skogstjarna Carlton Co MN IMG_7855 copyPOLYPHEMUS (Antheraea polyphemus)The “face” of a Polyphemus when viewed at close range…complete with eyebrows!

HOME MOTH PHOTOGRAPHY TIPS
1. Leave a garage/exterior house light on overnight (but don’t overdo it…leave the light off for a couple of nights between sessions, otherwise Gray Treefrogs, squirrels and birds will feast on your moths at dawn)
2. Go out early and see what the light brought in. Get outside between 5:30 and 6:30am before the moths warm up and start flying away.
3. Take “record” shots of moths perched on your garage or house siding, or porch. Then try to move them to better perches using native plants, trees. I slowly slip a flat piece of wood (about the size of a shim) under the moth until it clings to it. Then I move to my backdrop of choice and ease them onto that.
4. I have my flash and basic exposure set already…You can use a pop-up flash or hot-shoe flash, but you really should use some flash to make your subject pop.
5. I like to set a manual exposure that keeps my shutter at between 1/160 and 1/250 when using the pop-up flash (which synchs at 1/250 max). Sometimes, for larger moths, I can use my hot shoe flash set to Hi-speed synch to get higher shutter speeds. Remember, much of your shooting will be early in the morning and you may have to crank up the ISO to get these shutter speeds.
6. Now here is the part that has really improved my moth/insect shots..I switch the camera to live view and manual focus. Now when I see my favored composition in the viewfinder, I magnify the live view to 5x power. I now simply move my body/hands/camera in and out until the key part of the subject is razor-sharp in the live view viewfinder and click the shutter. I guarantee this technique will improve your moth and insect images!

[All photos taken with Canon 7D and Tamron f2 100mm macro lens (all images used manual focus). All handheld…Many taken at ISO 1600 or higher!]