A female blue-tailed emerald hummingbird drinks from a red prickly pear flower while hovering with its wings outstretched.
#birdoftheday #sideprofile #birds #hummingbird
Blue-tailed emerald feeding from a cactus flower. Aruba. Jan 2026.
Two burrowing owls perch on a prickly pear cactus. The larger bird rests its head on top of the shorter bird as they both look to the left in the photo.
Happy Valentine’s Day #birds #owls #wildlife #photography
Aruba. Jan, 2026.
You're telling me the Professors in the same department who teach in the same classrooms, and have offices on the same hall, and possibly have kids about the same age who go to the same schools and activities together might actually talk to one another? I don't believe you 😂
Photo credit goes to the much much more patient than me A. Krauchunas who was willing to wait the flycatcher out while it hunted.
An ash-throated flycatcher carries a gray caterpillar in its beak as it was hopping along a branch in the undergrowth.
#birds #birdoftheday #birds&bugs
Ash-throated Fly Catcher with a nice fat caterpillar. Los Cabos, MX. Dec, 2025. Taken by A. Krauchunas
A great blue heron wades through lily pads with a recently caught small brown fish grasped in its beak.
Great #Blue Heron hunting. Sapsucker woods, Ithaca, NY. June, 2024 #birdoftheday #waterbird #birds #nature #wildlife
A turkey vulture and two black vultures sit in a row on a branch of a fir tree. Their wrinkly featherless heads are very prominent in direct sunlight.
It was incredibly windy and only single digits today, but some of the birds did not mind #birds #wildlife
A ruby topaz hummingbird hovers in front of a red flower on a prickly pear cactus. The bird is in direct sunlight showing off it's beautiful golden gorget and red crown.
A ruby topaz hummingbird looks upwards towards its next destination, immediately after having fed on a red prickly pear cactus flower. Its tail feathers are spread and its golden gorget and red crown are both visible.
There may not be a more magical hummingbird than the Ruby Topaz. Aruba. January, 2026. #birds #wildlife #hummingbird #photography
A black Phoebe perches on a growth shoot on a palm tree.
Black Phoebe. Los Cabos, MX. December 2025. #birds #wildlife #photography
A black-crowned night heron swims through a pond that is too deep for it to touch the bottom, posed like it is a duck.
#Birds doing things they're not supposed to. A Black-crowned night heron pretending to be a duck. Divi Links, Aruba. January 2026. #wildlife
A yellow-crowned night heron stands amongst a field of mangrove propagules with it's head turned to the right, revealing its bright red eye and yellow crown feathers.
Yellow-crowned night heron
Spanish Lagoon, Aruba. January, 2026. #birds #wildlife #photography
Nine white-cheeked pintail ducks are visible in the field of view facing all different directions as they float in the water. Their white lower sides of their faces, brown caps and orange and black bills are all clearly visible.
#MallardMonday #Ducks #WeirdDucks #Birds #Wildlife
White-cheeked Pintails, Bubali Bird Preserve, Aruba January 2026
A whimbrel perches on a pile of coral rocks in profile facing to the left. It’s long downward curved beak is very visible despite the bird blending in so well with the rocks due to its brown coloration.
#BirdOfTheDay #LongBeaks #Birds #Wildlife
Hudsonian Whimbrel. Aruba January, 2024
A purple gallinule climbs on a palm frond, showing it’s deep purple chest feathers, blue-green wing feathers, and large heavily clawed foot.
A personal first as a timeline cleanse. Purple gallinule. Bubali bird preserve, Aruba. #birds #wildlife
An adult male Costa's hummingbird hovers in mid frame with its wings blurred. The beautiful purple and cerulean blue feather colors of it's crown and gorget are in full view.
A adult make Costa's hummingbird hovers midframe facing away from the viewer. The dark crown and mustache-like gorget feathers are readily evident as is the yellow pollen from the hibiscus flowers he was feeding on.
Costa's hummingbirds for the new year! #birds #wildlife 🪶
An adult male Costa's hummingbird hovers in mid frame with its wings blurred. The beautiful purple and cerulean blue feather colors of it's crown and gorget are in full view.
A adult make Costa's hummingbird hovers midframe facing away from the viewer. The dark crown and mustache-like gorget feathers are readily evident as is the yellow pollen from the hibiscus flowers he was feeding on.
Costa's hummingbirds for the new year! #birds #wildlife 🪶
Three cattle egrets sit in the fronds of a palm tree. In the lower left one stands on a leaf with its back to the camera. In the middle right one is preening its wings and in the top one looks back over its shoulder.
I‘m a fan of the Christmas tree decorations this year 🪶 #birds #wildlife #photography Los Cabos, MX
A grooved-bill Ani perched on a large stalk of grass peers from behind the grass leaves showing off its distinctive grooved beak and iridescent neck feathers.
Merry Christmas Eve from this Grooved-bill Ani. San José del Cabo, Mexico. 🪶 #birds #photography #wildlife
A yellow-rumped warbler sits head-on on a fir branch looking towards the right of the photo showing the yellow spots on its haunches.
A yellow-rumped warbler sits on a tree branch in profile, showing both its side yellow spots but also its yellow rump above its tail.
Happy Thanksgiving from a couple of yellow-rumped warblers 🪶 #birds #wildlife #photgraphy
A profile shot of a red shoulder hawk as it looks out in the distance over the photographer's head.
A red shouldered hawk in profile tilts it's head while looking at the photographer
A red shoulder hawk's head in profile showing its sharp bi-colored beak
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.
Any manufacturer doing this should be named and shamed. Shear buffoonery.
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.]
Our department and UD are a great place to be, with excellent collaborative colleagues and with a lot of fantastic resources available to researchers including outstanding Bioimaging, Sequencing, and Mass spectroscopy core facilities.
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...
I recommend Penrose brewing in Geneva (not far south down the Fox River). Excellent sours and other fun beers.
This is a transmission electron micrograph of a t-even family E. coli phage. The capsid head is visible as a dark spot in the upper lefthand corner with the tail protruding from it. The tail fibers are also just visible.
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
