Happy Valentine’s Day #birds #owls #wildlife #photography Aruba. Jan, 2026.

#birds #birdoftheday #birds&bugs Ash-throated Fly Catcher with a nice fat caterpillar. Los Cabos, MX. Dec, 2025. Taken by A. Krauchunas

Great #Blue Heron hunting. Sapsucker woods, Ithaca, NY. June, 2024 #birdoftheday #waterbird #birds #nature #wildlife

It was incredibly windy and only single digits today, but some of the birds did not mind #birds #wildlife

There may not be a more magical hummingbird than the Ruby Topaz. Aruba. January, 2026. #birds #wildlife #hummingbird #photography

Black Phoebe. Los Cabos, MX. December 2025. #birds #wildlife #photography

#Birds doing things they're not supposed to. A Black-crowned night heron pretending to be a duck. Divi Links, Aruba. January 2026. #wildlife

Yellow-crowned night heron Spanish Lagoon, Aruba. January, 2026. #birds #wildlife #photography

#MallardMonday #Ducks #WeirdDucks #Birds #Wildlife White-cheeked Pintails, Bubali Bird Preserve, Aruba January 2026

#BirdOfTheDay #LongBeaks #Birds #Wildlife Hudsonian Whimbrel. Aruba January, 2024

A personal first as a timeline cleanse. Purple gallinule. Bubali bird preserve, Aruba. #birds #wildlife

Costa's hummingbirds for the new year! #birds #wildlife 🪶

Costa's hummingbirds for the new year! #birds #wildlife 🪶

I‘m a fan of the Christmas tree decorations this year 🪶 #birds #wildlife #photography Los Cabos, MX

Merry Christmas Eve from this Grooved-bill Ani. San José del Cabo, Mexico. 🪶 #birds #photography #wildlife

Happy Thanksgiving from a couple of yellow-rumped warblers 🪶 #birds #wildlife #photgraphy

Tis the season for red shouldered hawks 🪶 #birds

Me, when my graduate student asks for a third meeting this week, on a Wednesday.

One week left until the priority deadline. Come join us in Biological Sciences the University of Delaware.

Horror Contig(artifact?) from my students' phage genome sequencing just in time for Halloween 🧪 #microsky

"Why are we in this theater? Let's walk out!" [They did not move.]

My department (Biological Sciences) at the University of Delaware is looking for a new tenure track assistant professor with a research focus on biomolecular sensing broadly. 🧪#molbiol #microsky careers.udel.edu/en-us/job/50...

My Experimental Microbiology students have all successfully cultured their phage! And thanks to the U Delaware Bioimaging Core we have really nice TEM images. Next step, genome sequencing. 🧪#MoBiol

Celebratory birb! 🪶 #birds

New in JB: There are many ways to regulate transcription. Jayasinghe and Babitzke review the role of RNA polymerase pausing in the control of gene expression in several microbes. journals.asm.org/doi/10.1128/... @asm.org #JBacteriology

#birds More hummingbirds just because (just because they'll be migrating away soon enough and we'll miss them).

When at the Genetics of Bacteria and Phage meeting #phages2025 it's important to visit Olbrich botanical gardens for the macrobiology #birds #wildlife #photography

Alireza Ghanbarpour: gorgeous, asymmetrical, monstrous HflK/C-FtsH complex that proteolyses membrane proteins in #Ecoli revealed by cryoEM #phages2025 🦠 www.embopress.org/doi/full/10....

Important to note: 1. The job search that he applied to ultimately hired a different white man and 2. He is mad because a separate department from the one he applied to was directly recruiting a senior faculty member from another university who happened to be a black woman. Absolute nonsense.

More adventures in bird portraiture #birds 🪶 Bombay Hook, DE July 2025

More adventures in bird portraiture #birds 🪶 Bombay Hook, DE July 2025

Two for #TwosDay #birds #wildlife Long Beach Island, NJ July 2025

A surprising daytime friend. Ghost Crab. Long Beach Island, NJ. July, 2025.

Least Terns - exchanging a fish! Early July, Surf Drive Beach, MA

Terns! Terns! Terns! Early July, Long Beach Island, NJ #birds #wildlife

Piping Plover family enjoying the beach life bordering the Great Sippewisett Marsh. Barnstable County, MA. #birds

Another good sighting today. Indigo bunting on an overgrown slope. Chester County, PA. #birds #wildlife

Back home from the Microbial Transcription Gordon Conference and glad to see our hummingbirds are settled in to our yard for the season right on time. Photo credit: Amber Krauchunas. #birds #wildlife

Our paper describing a method for measuring cotranscriptional RNA folding using high-throughput RNA chemical probing is out @natcomms.nature.com!

Pileated woodpecker #birds #wildlife

I made a new friend while taking a break from writing. Woods Hole, MA. May, 2025. #birds

Semipalmated Plover. Bombay Hook, Smyrna, DE. May, 2025. #birds

There is nothing better. #birds

Bird headshots. Chipping Sparrow and Tufted Titmouse. #birds

Bird photography tips, an oldie that is hopefully useful for spring migration right now.

Feeling gutted. I just learned a good friend passed away a few months ago without my knowing. She was always so supportive and loved it when Amber and I shared our budding birding hobby with her. She kept printouts of our early photos on her office wall for years after we left Rutgers. #birds

Spring time is for migrating warblers! A photogenic Black and White Warbler. Howard County, MD #birds

My father-in-law, Jack Strominger, and I wrote a letter to the @wsj.com editor about the current threats to science due to Trump's funding freeze. Please repost! www.wsj.com/opinion/scie...

Photobomb! Ashland Nature Preserve, Hockessin, DE #birds

Latest work from the lab - we identify a translation factor, YebC2, that reduces ribosome stalling in B. subtilis! Congrats to co-first authors: grad students Hye-Rim Hong & Cassidy Prince & undergrad Dennis Wu @denniswu02.bsky.social journals.plos.org/plosgenetics...