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.

Wednesday (04-November-2020) — New Jersey

Autumn Backyard Nature in New Jersey.

Visitors to the birdfeeder today included Tufted Titmouse, Black-capped Chickadee, Pine Siskin, and a molting American Goldfinch.


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

Daily Electric Energy Used (51.7 kWh) from Sense. Daily Solar Electric Energy Produced (29.5 kWh) from Sense and SolSystems. Cloudy and rain. Geothermal HVAC system on. A deficit of 22.2 kWh.

Fourteen-Years Ago (03-November-2006)

Autumn Backyard Nature in New Jersey.

A wary buck looking for young does in my backyard.

Buck. (David J Mathre)
Wary buck. Backyard autumn nature in New Jersey. Image taken with a Nikon D2xs camera and 80-400 mm VR lens (ISO 400, 400 mm, f/5.6, 1/45 sec). (David J Mathre)

Current (03-November-2020) Daily Electric Energy Used (52.2 kWh) from Sense. Daily Solar Electric Energy Produced (29.6 kWh) from Sense and SolSystems. Sun and clouds. Geothermal HVAC system on. A deficit of 22.6 kWh.

Monday (02-Novemeber-2020) — New Jersey

Autumn Backyard Nature in New Jersey.

A number of feisty Pine Siskin’s descended on the birdfeeder. The local House Finch’s and Goldfinch’s had to be aggressive to even approach the birdfeeder. Most other small birds stayed away.


caption. Individual images in the slideshow are available in my PhotoShelter Gallery.

Daily Electric Energy Used (54.3 kWh) from Sense. Daily Solar Electric Energy Produced (33.5 kWh) from Sense and SolSystems. Cloudy and rain. Geothermal HVAC system on. A deficit of 17.8 kWh.

Sunday (01-November-2020) — New Jersey

Autumn Backyard Nature in New Jersey.

Not many birds at the birdfeeder. The American Goldfinch have adopted their winter/non-breeding colors.

American Goldfinch. (David J Mathre)
American Goldfinch. Image taken with a Nikon D850 camera and 600 mm f/4 VR lens. (David J Mathre)

Daily Electric Energy Used (56.5 kWh) from Sense. Daily Solar Electric Energy Produced (6.9 kWh) from Sense and SolSystems. Cloudy and rain. Geothermal HVAC system on. A deficit of 49.6 kWh. Still having data issues with Sense.

Saturday (31-October-2020) — New Jersey

Autumn Backyard Nighttime Nature in New Jersey.

The deer came back with some of her buddies for Halloween assuming what she left from last night were the Halloween treats.

Daily Electric Energy Used (??? kWh) from Sense. Daily Solar Electric Energy Produced (32.6 kWh) from Sense and SolSystems. The sun returned. A deficit of ??? kWh. The folks at Sense have been have issues providing energy usage data for the last several days.