Author: David Mathre

I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.

Five-Years Ago (05-December-2015) — New Jersey

Late Autumn Backyard Nature in New Jersey.

A cold Red-tailed Hawk looking for a meal.

Red-tailed Hawk. (David J Mathre)
Red-tailed Hawk. Image taken with a Nikon D3x camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/4, 1/200 sec). (David J Mathre)

Daily Electric Energy Used (53.3 kWh) from Sense. Daily Solar Electric Energy Produced (11.3 kWh) from Sense and SolSystems. Cloudy, not much sun. Geothermal HVAC system on. A deficit of 42.0 kWh.

Thirteen-Years Ago (04-December-2007) — Colorado

Late Autumn Clouds over Boulder.

I miss Boulder.

alt_title. (David J Mathre)
Orange and Black Clouds Over Boulder. Image taken with a Nikon D300 camera and 17-35 mm f/2.8 lens (ISO 200, 35 mm, f/11, 1/8 sec). (David J Mathre)

Daily Electric Energy Used (52.5 kWh) from Sense. Daily Solar Electric Energy Produced (6.9 kWh) from Sense and SolSystems. Cloudy. Geothermal HVAC system on. A deficit of 45.6 kWh.

Five-Years Ago (03-December-2015) — New Jersey

Late Autumn Backyard Nature in New Jersey.

Lonely white-plastic chair over run with dead “Mile-a-Minute” vines.

alt_title. (David J Mathre)
Lonely white-plastic chair over run with dead “Mile-a-Minute” vines. Image taken with a Nikon Df camera and 58 mm f/1.4G lens (ISO 100, 58 mm, f/8, 1/60 sec). (David J Mathre)

Daily Electric Energy Used (51.7 kWh) from Sense. Daily Solar Electric Energy Produced (31.7 kWh) from Sense and SolSystems. The sun returned. Geothermal HVAC system on. A deficit of 20.0 kWh.

Wednesday (02-December-2020) — New Jersey

Autumn Backyard Nature in New Jersey.

Visitors to the birdfeeder: Red-bellied Woodpecker and Northern Cardinal


Backyard Birdfeeder. Individual images in the slideshow are available in my PhotoShelter Gallery.

Daily Electric Energy Used (60.9 kWh) from Sense. Daily Solar Electric Energy Produced (13.8 kWh) from Sense and SolSystems. Cloudy. Geothermal HVAC system on. A deficit of 47.1 kWh.

Five-Years Ago (01-December-2015) — New Jersey

Late Autumn Nature in New Jersey.

While driving home from the grocery store I spotted a red fox at the side of the road helping itself to a venison meal (road kill). I was lucky to have a camera with a telephoto lens in the car with me to capture this shot. There were several turkey vultures wait their turn.  It is good to see the foxes returning, as they were almost completely killed off by rabies twenty years ago (along with the raccoon, opossum, and skunk).

Red fox on the side of the road with a road-killed deer. Late Autumn Nature in New Jersey. Image taken with a Nikon D810a camera and 80-400 mm VRII lens (ISO 1000, 400 mm, f/5.6, 1/400 sec). (David J Mathre)
Red fox on the side of the road with a road-killed deer. Late Autumn Nature in New Jersey. Image taken with a Nikon D810a camera and 80-400 mm VRII lens (ISO 1000, 400 mm, f/5.6, 1/400 sec). (David J Mathre)

Daily Electric Energy Used (46.8 kWh) from Sense. Daily Solar Electric Energy Produced (14.4 kWh) from Sense and SolSystems. Cloudy, not much sun. Geothermal HVAC system on. A deficit of 32.4 kWh.