merganser with 4 young

 

spider silk

Hot, foggy morning.  Dewpoint is high enough to form beads of water on each and every

strand of spider silk in this beautiful web.

 

convivial ducks

This summer has been very scant on rainfall so far.  The pond water level is currently low, and there is plenty of algae floating.  But the rocks are always good places for sharing the sunshine.  Female Mallard and Hooded Merganser have raised their young broods here, and shared the big rock today.

dragonflies

Two large darner dragonflies hovered on pondweed growing in the water. Each dragonfly is over 3 inches long, and more brilliant blue and green colors than the vegetation nearby.  They seemed to be connected (with the male grabbing the female by the head with his rear abdomen appendages) which suggests some stage of mating.

basking turtles

Many Painted Turtles Chrysemys picta live in the pond. On sunny days they climb out of the water and bask in the sun to warm their blood.  In this temperate Spring weather, they spread all their appendages including head and neck out of the shell to get maximum exposure.

floating pondweed

The floating leaves of Pondweed are fading at the end of summer.  And the leaves of the nearby trees fall in the water, drift with the breeze, and catch on the Pondweed.  They look golden in the sunlight, brighten the pond, and complement the wildflowers surrounding the water. 

Floating Pondweed Potemogeton natans  has two kinds of leaves; floating and submerged. The shiny leathery floating leaves are opaque, and support the whole plant which is rooted in the mud below. The submerged leaves are thin, transparent, and move with the water.  In summer these plants provide habitats for many tiny aquatic invertebrates. These in turn are used as food by frogs, snakes, turtles, and ducks who feed here. After these plants die, their decomposition by bacteria and fungi provides food in turn for the aquatic invertebrates.  The Pondweed survives winter with rhizomes buried in the mud at the bottom. 

leopard frog

Leopard Frogs Lithobates pipiens  who live in our pond may travel one or two miles from water in the summer.  You might hear them make a long, deep 'snore' noise lasting several seconds ending with a chuck-chuck-chuck.  In the fall, Leopard Frogs come back to their pond.  We saw this one hopping across the sandy shore.  They spend the cold winter in the water, burrowed into the mud, hibernating with their metabolism slowed.

It was a lovely day, although hot and humid. This pond is part of the stormwater system. The technique uses creeks, ponds, wetlands, lakes, and ditches to manage stormwater run-off. All of the water gathered makes its way to the St. Croix River or infiltrates into the groundwater aquifer.

high water

This morning, after
7 inches of rain fell overnight, the pond is higher than usual and some of the shoreline around it is under water.  The critters are trying to find their favorite places to feed or soak up the sun.


I was watching a turtle crawl slowly up on a small rise among the grasses.


Then a frog croaked, and I noticed him right near the turtle.  We've been hearing these Green Frogs
Rana (Aquarana) clamitans
for several weeks.  They are usually secretive; this is first time I've seen one here.  Do you see him in the photo below?

reflections on a rock

Wandering in the woods, I came upon this rock.  It has been there a long while and I've walked by it before.  But today it looked more interesting with a pool of rainwater in the depression, reflecting the tree trunks above.

alarm calls in the woods

The raptor Coopers Hawk came to the water bowl for a drink, then dropped his tail feathers into the cold water while looking around for dinner. 

All the songbirds freeze in place and get very quiet when a raptor appears.  They don't want to be seen or heard, for fear of becoming a raptor's meal.

Read a fascinating article about alarm calls that birds make to alert others of a raptor hunting in the area . . .
https://www.allaboutbirds.org/look-out-the-backyard-bird-alarm-call-network/

Southwest USA study trip II

Also spotted at the wetlands preserve, these birds that winter in the south and migrate north in the western USA for nesting season.



top: Cinnamon Teal Anas cyanoptera

middle: American Widgeon Anas americanus



bottom: Lesser Goldfinch Spinus psaltria

winter water

At the edge of the wild wild woods, I keep a bowl with open water for the birds.  Many species use it to drink and to preen their feathers even in cold weather.  Feathers do their job of insulating for warmth better when they are clean.  The Northern Flicker Colaptes auratus often drums on the ground to find ant larvae to eat.  That may make him thirsty.  The Blue Jay Cyanocitta cristata occasionally dives in for a full bath.

stream bed through the woods

Record rainfall in June so far!  During one downpour, the swale and the dry stream bed down through the wild wild woods was running full.  Good moisture for the wildflowers growing in the woods.

The neighborhood uphill from the woods feeds runoff water into a swale where cattails, blue vervain, bulrush, blue lobelia, and winged loosestrife grow.

Winged Loosestrife (Lythrum alatum)

Blue Lobelia (Lobelia siphilitica)

winter water

 
A heated water bowl at the edge of the woods has been our bird oasis through several cold winters.  It keeps water available for the birds, even when the rim accumulates a crust of snow and long icicles around the perimeter.  It is close to the "woody tree" where many roosting holes provide avian accommodations on cold nights.

Northern Flicker

water for birds

A pair of Red-Bellied Woodpeckers Melanerpes carolinus occasionally come out of the woods to eat suet and drink at the water bowl.  The female has less red on her head than this male, but the female has more red feathers apparent on her belly.

bird bathing

The birds love the "bubbler" that continuously moves water in the crockery bowl that serves as one of our bird watering sites. This week the American Robins (Turdus migratorius) have been lining up and sometimes are rudely impatient as they take turns in the bowl. When this bird finished the vigorous part of her bath, she spent several minutes just relaxing in the water with her bottom on the bubbler.