St. James Farm is Singing

by Carl Strang

Birds poured into St. James Farm Forest Preserve in mid-May as the wave crest of neotropical migrants pushed through northern Illinois. On some days, sorting through the many songs to note visiting species was a challenge.

Not all were singing, though, for example this bald eagle that stopped in the restored stream corridor.

Not all were singing, though, for example this bald eagle that stopped in the restored stream corridor.

Blue-gray gnatcatchers are common on the preserve, and are among the earliest nesters.

Blue-gray gnatcatchers are common on the preserve, and are among the earliest nesters.

I am hoping this hooded warbler, singing among the thicketed portions of the central forest, will find a mate and nest there.

I am hoping this hooded warbler, singing among the thicketed portions of the central forest, will find a mate and nest there.

I took that photo from a distance on a foggy day, not wanting to get too close and create a disturbance.

This sharp-shinned hawk was very vocal, its calls to my ear less like those of its relative the Cooper’s hawk and more like those of a shorebird.

This sharp-shinned hawk was very vocal, its calls to my ear less like those of its relative the Cooper’s hawk and more like those of a shorebird.

At one point, heavy rains flooded the stream well beyond its banks.

The engineered restoration corridor held up well to the challenge.

The engineered restoration corridor held up well to the challenge.

Among the water-loving birds that took advantage of this temporary habitat expansion was a double-crested cormorant, here taking a break between swims.

Among the water-loving birds that took advantage of this temporary habitat expansion was a double-crested cormorant, here taking a break between swims.

After the water receded, the deposited mud interested a few late shorebird migrants, including this least sandpiper.

After the water receded, the deposited mud interested a few late shorebird migrants, including this least sandpiper.

For other birds, the breeding season is well under way.

I am not sure where this goose brood came from, but they have found the restored stream corridor to their liking.

I am not sure where this goose brood came from, but they have found the restored stream corridor to their liking.

Among my happiest observations in the second half of May has been the discovery of two eastern bluebird nests in natural cavities.

Here the male stuffs food into unseen nestlings in a bur oak cavity.

Here the male stuffs food into unseen nestlings in a bur oak cavity.

Mom takes her turn. In just a few minutes I saw each parent make 3 such feeding trips.

Mom takes her turn. In just a few minutes I saw each parent make 3 such feeding trips.

The same story was repeated in a dead tree near the stream. I am relieved that not all bluebirds are dependent upon human-provided nest boxes.

A little earlier in their own cycle, a pair of red-headed woodpeckers has been setting up shop in another dead tree.

They have settled upon the lower of the two holes beside the foreground bird.

They have settled upon the lower of the two holes beside the foreground bird. (Clicking on any photo will blow it up for better viewing).

This pair energetically repelled another pair which expressed interest in their tree. I hope the other pair also will nest at St. James Farm.

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St. James Farm is Blooming

by Carl Strang

Spring flowers continue to open at St. James Farm Forest Preserve. Today’s post is a gallery of highlights. On the large scale, I have been delighted to find that black haw is a dominant understory shrub in the central forest.

Black haw is a native Viburnum.

Black haw is a native Viburnum.

Blooming black haws are prominent in the forest area cleared of invasive shrubs this past winter.

Blooming black haws are prominent in the forest area cleared of invasive shrubs this past winter.

Diverse herbaceous plants are blooming at the ground level.

Jacob’s ladders are common in parts of the forest.

Jacob’s ladders are common in parts of the forest.

A few declined trilliums also have appeared. The white trilliums have become rarer in DuPage County thanks to people picking them, which kills them. All plants are legally protected on the preserves.

A few declined trilliums also have appeared. The white trilliums have become rarer in DuPage County thanks to people picking them, which kills them. All plants are legally protected on the preserves.

Butterweed is an uncommon and short-lived member of the ragwort group.

Butterweed is an uncommon and short-lived member of the ragwort group.

This bulbous cress plant is benefitting from last year’s restoration of the stream and its corridor area.

This bulbous cress plant is benefitting from last year’s restoration of the stream and its corridor area.

I look forward to many more botanical discoveries as the season progresses.

Some April Insects

by Carl Strang

Insects began to appear during April’s warm spells. Inevitably I have been comparing my finds at St. James Farm Forest Preserve to my experience at Mayslake Forest Preserve, the site of my previous preserve monitoring. Some of the early insects at St. James Farm are shared with Mayslake.

The red admiral overwinters in the pupal stage.

The red admiral overwinters in the pupal stage.

Another early season butterfly is the spring azure.

Another early season butterfly is the spring azure.

Other species I never found at Mayslake.

The six-spotted tiger beetle prowls the trails at St. James Farm, as it does on many forest preserves. I was perennially surprised that I never found them at Mayslake.

The six-spotted tiger beetle prowls the trails at St. James Farm, as it does on many forest preserves. I was perennially surprised that I never found them at Mayslake.

One impressive insect I encountered at St. James Farm was entirely new to my experience. I first saw it flying, and I thought I was seeing a large bee fly or a fat bee. Then it landed.

It proved to be a beetle. The bumble bee flower beetle’s name reflects its impressive mimicry.

It proved to be a beetle. The bumble bee flower beetle’s name reflects its impressive mimicry.

This is a member of the scarab family, and it feeds from flowers, ripe fruits, and sap-exuding tree wounds.

Branched!

by Carl Strang

I wanted to minimize my disturbance of the St. James Farm great horned owls by checking their nest every other week until the young no longer needed to be brooded, then making weekly checks until branching seemed imminent. That plan quickly has become moot. As reported earlier, I first saw the young in the nest on April 21. A week later, the mother was standing watch. It was a cool day, but apparently the young were judged warm enough to be on their own.

Nothing is quite like the glare of a great horned owl who doesn’t want you around.

Nothing is quite like the glare of a great horned owl who doesn’t want you around.

Monday was the first warm sunny day in over a week, and I decided to check the nest. It was empty, and the young were high up in a nearby white oak stem.

There were two, and this was the smaller one. Its sibling was nestled in a dark shaded spot, not easily photographed.

There were two, and this was the smaller one. Its sibling was nestled in a dark shaded spot, not easily photographed.

Young great horneds leave the nest before they can fly, walking and climbing with their strong feet, often into a tree other than the nest tree. That is why their departure is called “branching” rather than “fledging.” In this case their climb was impressive, as the bark of the tree they chose appeared relatively smooth. They are growing rapidly, and it is possible this is the last week I will see them for a while. It will be easy enough to monitor them as I wish through the summer, though, as their distinctive loud screeching-whining calls will give them away in the evenings.

SJF in Bloom

by Carl Strang

Spring is advancing in fits and starts, with alternating warm and cool periods, but through it all the plants of St. James Farm Forest Preserve are growing, and many have been blooming. Some of them are familiar, some new to me, but together they are demonstrating an impressive botanical diversity, especially in the forest.

White trout lilies are abundant, but they began to bloom later at SJF than in other area forests.

White trout lilies are abundant, but they began to bloom later at SJF than in other area forests.

Swamp buttercups are common throughout.

Swamp buttercups are common throughout.

Virginia bluebells always are a welcome sight this time of year. The ones at St. James Farm probably originated in the estate’s gardens, but have made themselves at home in scattered places well away from there.

Virginia bluebells always are a welcome sight this time of year. The ones at St. James Farm probably originated in the estate’s gardens, but have made themselves at home in scattered places well away from there.

Yellow violets, as well as the common blue ones, brighten the forest floor.

Yellow violets, as well as the common blue ones, brighten the forest floor.

Patches of wood anemones are frequent in shady spots.

Patches of wood anemones are frequent in shady spots.

The botanical connoisseur will want to know about the sedges. Four early ones are blooming now, the common wood sedge, Wood’s stiff sedge, and two more:

There are large patches of common oak sedge in many places.

There are large patches of common oak sedge in many places.

Long-beaked sedge was a new one for me, as was Wood’s stiff sedge.

Long-beaked sedge was a new one for me, as was Wood’s stiff sedge.

More mundane, but adding to the preserve’s diversity, are others worthy of mention.

Common chickweed is an introduced species, at home in the lawns.

Common chickweed is an introduced species, at home in the lawns.

Not flowers, or even plants, bracket fungi visually enhance the forest as they grow to produce their spores.

Not flowers, or even plants, bracket fungi visually enhance the forest as they grow to produce their spores.

 

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