Showing posts with label Red-eyed Vireo. Show all posts
Showing posts with label Red-eyed Vireo. Show all posts

Monday, August 28, 2017

A weekend of bird banding at SpruceHaven

26 and 27 August 2017

26 August

     Our nets went up a couple of weeks ago, but for one reason or another there has been no report here about our activity. Time to rectify that!
     The morning started badly on Saturday for Kevin, who forgot his waterproof boots, and did the rounds of the nets with soaking wet feet. Temperatures at the crack of dawn were hovering around 8°C so his feet were not only wet, but cold. Bird banders are hardy souls, however, and he persevered despite the discomfort, with nary a word of complaint coming out of his mouth. My feet were toasty warm and dry in my long rubber boots, (wellies as they are known in England), so perhaps there was an air of smugness about me - I hope not!
     One of the captures we made on the first circuit  was a Savannah Sparrow (Passerculus sandwichensis), a species which we see infrequently at SpruceHaven since there is not (yet) suitable habitat for them, so we seem to have prima facie evidence that we are situated on their migratory pathway.


     We recovered three House Wrens (Troglodytes aedon) from the same net, located close to the edge of the woodlot where they are known to breed, so it appears that they are initiating migration already.


     Wood warblers are certainly on the move now and we were not surprised to find this Common Yellowthroat (Geothlypis tricha) in the net.


     A Nashville Warbler (Leiothlypis ruficapilla) provided further evidence of the early stages of warbler migration.



     In a family noted for its scintillating beauty I find Wilson's Warbler (Cardellina pusilla) exceptionally attractive, even though it is not as spectacular as some of its congeners.


     One of the most appealing features about our bird banding operation is to use it as an educational opportunity for the numerous visitors who come to observe the process and see birds they had not even known existed. Many are simply astounded at the migratory feats of these tiny gems. Everyone goes away with a new appreciation of the avian world, and not a few are motivated to support conservation measures when the opportunity arises. Sometimes it as simple as a commitment to enhance their gardens with bird-friendly native plants.
     One of our star pupils, almost since we banded our first nestling Barn Swallow (Hirundo rustica) has been Sandy's granddaughter, Annabelle. This bright young nine-year old has not only an insatiable curiosity she also helps us in many ways, not hesitating to do the rounds of the nets with us and carry back the birds in their bags. 


     Every bird banded affords us an opportunity to talk to Annabelle about it and she absorbs information like a sponge. It is always a special treat for her to have a bird placed in her hand for release, and she relishes this intimate contact with a tiny wild creature with whom she has gained an affinity.


     Perhaps we have one of the next generation of biologists or conservation giants right here at our modest little banding station. Regardless, I am always happy to see her.
     Willow Flycatcher (Empidonax traillii) and Alder Flycatcher (Empidonax alnorum) are impossible to distinguish in the field unless they are heard. Even in the hand of a bird bander one cannot be differentiated from another and they are recorded as Traill's Flycatcher.


     Least Flycatcher (Empidonax minimus) can be identified by wing measurement, however, and we were happy to have the opportunity to band one. Had we simply seen this bird flitting in the trees searching for food we would have been hard pressed to record it as anything other than Empidonax, sp.



     It was a day for tyrant flycatchers, with Eastern Phoebe (Sayornis phoebe) being next on our list.


     This handsome male Northern Cardinal (Cardinalis cardinalis) let Kevin know in no uncertain terms that it was not happy about being handled, and latched onto his hand. Those beaks are designed to crack open nuts and really hurt when sunk into human flesh.



     So not only did he have wet feet, he had a sore finger!
     We trapped numerous Song Sparrows (Melospiza melodia), one of which was a bird we banded on 2 October 2016 (Band number 2581 87982) so we know that this bird migrated and returned to the same area this year.

All species banded 26 August: Eastern Phoebe (1), Traill's Flycatcher (1), Least Flycatcher (1), Cedar Waxwing (2), Black-capped Chickadee (3), House Wren (3), American Goldfinch (4), Nashville Warbler (1), Common Yellowthroat (1), Wilson's Warbler (1), Song Sparrow (3), Savannah Sparrow (2), Northern Cardinal (1).  Total:  24.

27 August

     Having learned his lesson yesterday, Kevin arrived with waterproof footwear, newly treated with silicone, and a warm fleece to start the day. I am sure he wiggled his toes with glee!
     Following a clear night with no wind, it was quiet, as we had expected.
     Another migrating warbler surrendered itself for a band, however; a female American Redstart ( Setophaga ruticilla), this time.


     This bird was followed in short order by Cedar Waxwing (Bombycilla cedrorum), one of several trapped over the weekend, but this individual obligingly fanned his tail to reveal the yellow terminal feathers and the waxy red tips on the wing, from which the bird gets its name. 



     A Red-eyed Vireo (Vireo olivaceus) was our first capture of this species in the fall.


     Roger Tory Peterson stated many years ago that this species was probably the most abundant species in eastern deciduous woodlands, but it is certainly no longer anywhere near as common as it used to be.
     A Common Yellowthroat was the only other warbler we banded today.



     Ever faithful, Annabelle came out to help and we enjoyed chatting with her, and tried to answer her hundred and one questions. She has been staying with her grandparents but she will be back home next weekend, so we probably won't see her. We'll just have to manage without her!

All species banded 27 August: Traill's Flycatcher (1), Red-eyed Vireo (1), Cedar Waxwing (1), House Wren (2), American Goldfinch (1), Common Yellowthroat (1), American Redstart (1), Song Sparrow (3).  Total: 11.
     

Sunday, September 11, 2016

Spider Venom and Bird Banding Episode 4

11 September 2016

     Today is the fifteenth anniversary of those terrible events in New York, Pennsylvania and at the Pentagon, which have come to be universally known as 9/11. I freely confess to having not remembered it at all, and it was only when I had to write the date in the bird banding log that the significance was impressed upon me. All I can say is, thank goodness life has returned to normal, and no doubt legions of bird banders across the United States were also going about their business as usual. The terrorists did not succeed.
     When returning from a circuit of the nets, bags containing birds in hand, the keen eyes of Jim Huffman saw a Cabbage White Pieris rapae fly into a spider's web. Instantly imprisoned it flapped its wings so furiously that the first pictures I took were just a blur. Quick as a flash, a spider in the genus Argiope, (although I am not sure as to species), was on the butterfly and I assume quickly injected venom into it, and its wing beats ceased.


     How many dramas in nature do we miss? How many life and death struggles take place unseen as we strain to see a bird through our binoculars? This one was riveting to watch, albeit deadly for the Cabbage White, and I am truly grateful to Jim for drawing my attention to it.
     We had a very successful day of banding, with several species of warbler, giving us more evidence each week that SpruceHaven is part of a significant migratory pathway for warblers.
     This Nashville Warbler Leiothlypis ruficapilla is resting quietly in John Lichty's hand before flying off to continue its migration, now clearly identified as passing through St. Agatha, ON.


     We were very happy to band our first Swamp Sparrow Melospiza georgiana of the year; note the bright rusty scapulars.



     Other than Song Sparrows Melospiza melodia, sparrows have not yet appeared in our nets, but we expect that shortly other species will start to show up.
     We captured two Wilson's Warblers Cardellina pusilla, handsome birds indeed, and a further indication that SpruceHaven is a pathway for southbound neotropical migrants.


     A friend of mine who is Jewish always refers to this warbler as a Yarmulke Warbler since he says the black patch on the head always reminds him of the skullcap worn by observant Jews.


     Flycatchers in the genus Empidonax are notoriously difficult to identify in the field, and even in the hand, can present the bird bander with some difficulties in nailing down the species. Kevin was uncertain initially about this individual, but carefully consulted the reference "bible" and based on the measurement of the wing chord and the weight of the bird, he narrowed it down to Least Flycatcher Empidonax minimus. This was our first trap of this species and represents the third species in this family (that we know of) to journey through SpruceHaven.




     Once again I would be remiss if I concluded this post without a word of thanks to Kevin Grundy, a superb bander who demonstrates time and again a keen bias in favour of the welfare of the birds. We are very fortunate to have Kevin as part of our team. Indeed, without Kevin, this operation would not take place since he is the only one among us with a permit.
     See you next Saturday Kevin!

Total species banded: Traill's Flycatcher (2), Least Flycatcher (1), Red-eyed Vireo (1), House Wren (1), American Goldfinch (4), Nashville Warbler (2), Common Yellowthroat (8), Wilson's Warbler (2)Song Sparrow (6), Swamp Sparrow (1) - Total individuals: 28


One Ruby-throated Hummingbird  Archilochus colubris was captured and released.

Sunday, September 04, 2016

Sandpipers and Bird Banding Episode 3


     I have mentioned in a couple of recent posts that we have been monitoring a small wetland in nearby Erbsville, trying to photograph its diversity so that we have a species record if its existence becomes imperilled by current plans to create a major housing development close by. 
     A few days ago a Solitary Sandpiper Tringa solitaria and a Spotted Sandpiper Actitis macularius were there together and at times came quite close to me.


Solitary Sandpiper


Solitary Sandpiper

Spotted Sandpiper
     Neither bird is in breeding plumage, although the difference is more pronounced in the Spotted Sandpiper. Here is what it looks like when breeding.


     Obligingly, they came close together a couple of times enabling me to take this shot where you can compare their differences.


     I was also able to get a few pictures of Eastern Comma Polygonia comma after quite a bit of chasing. For the most part it would alight for the briefest of moments and then take off. A little perseverance did the trick, however.



     Our bird banding was in high gear again yesterday and I am including below species not previously captured in the nets.
     One of our prizes was a beautiful male Black-throated Blue Warbler Setophaga caerulescens, shown here in Kevin's careful hands.


     As most of you know, I am sure, the birds are retrieved from the nets in cloth bags. The birds are usually still and quiet once in the darkness of the bag, but if they do flap a little the bags give easily and no damage is done to their wings, as would happen if they were in a box, for example. Here are bags containing birds waiting to be be banded and released on their way.



     A female Nashville Warbler Leiothlypis ruficapilla was quickly processed and released after a couple of pictures were taken.



     American Yellow Warblers Setophaga aestiva are amongst the earliest warblers to leave after breeding, so we were a little surprised to capture two of them.



     We are always happy when children come to observe the goings on, and here you can see Kevin providing his usual level of calm, patient explanations to Emma Trink, her sister, Abigail and Kendra Sonnemann, who was there for the first time. Emma and Abigail are old hands at this now!




     The kids lost no time in persuading Sandy to take them for a ride in her EZ Go - they did the circuit of the nets the easy way!



     We captured a Northern Flicker Colaptes auratus, as we did last week and this bird was well into moult, enabling us the explain the moult sequence and the feather tracts to both adults and children present.

     
     Our final new species of warbler was a Common Yellowthroat Geothlypis trichas, and we caught two individuals.


     Our totals were not as high as the previous two weeks but rewarding nonetheless. We will look forward to next Saturday to see what the nets reveal then.

Total species banded: Northern Flicker (1), Red-eyed Vireo (1), Black-capped Chickadee (1), Nashville Warbler (3), Common Yellowthroat (2), American Yellow Warbler (2), Black-throated Blue Warbler (1), Song Sparrow (3) Total individuals: 14



Tuesday, August 30, 2016

Bird Banding - Episode 2


28 August 2016

     It was barely light when Miriam and I arrived at SpruceHaven, but Kevin was already out setting the nets, along with John Lichty who had arrived earlier than us. It was not long before we were joined by Jim Huffman and Francine Gilbert, along with their friend Bashar, all keen to observe the operation, as well as to get to know SpruceHaven a little, and get brought up to speed on our Barn Swallow Hirundo rustica colony.
     The first haul from the mist nets was substantial, and we already had secured new species, a scenario destined to repeat itself in the weeks ahead as the pace of migration accelerates.
     We trapped two Magnolia Warblers Setophaga magnolia which provided a fine opportunity for everyone to examine their autumnal plumage close up. Anyone owning a field guide to North American birds will be familiar with the pages called "Confusing fall warblers" - indeed they can be!

Magnolia Warbler

Magnolia Warbler


     Kevin mentioned that he has banded Blackburnian Warblers Setophaga fusca relatively infrequently, so it was a great surprise when we retrieved six from our nets. Obviously SpruceHaven is a significant migratory pathway for this species.


Blackburnian Warbler


     Our first vireo to be caught and banded was a Red-eyed Vireo Vireo olivaceus - hardly surprising.



Red-eyed Vireo

     Last week we counted ourselves lucky when we captured a Yellow-bellied Flycatcher Empidonax flaviventri, and this week we netted two Traill's Flycatchers - more to be expected over the nest few weeks. A word of explanation is in order about Traill's Flycatcher, which is a bit of misnomer these days. There are two species of Empidonax flycatcher, Willow Flycatcher Empidonax trailli and Alder Flycatcher Empidonax alnorum, which were formerly considered one species, Traill's Flycatcher. The two species are virtually identical morphologically but their song is distinctively different from one species to the other. In the spring when the males are singing it is easy to tell the two apart, and habitat also provides a clue, but in the fall it is impossible to know which is which, even in the hand. Thus, autumn bird banders still lump the two together as Traill's Flycatcher.

Traill's Flycatcher
      The other tyrant flycatcher we caught, Eastern Wood Pewee Contopus virens is shown below.



Eastern Wood Pewee


Eastern Wood Pewee

     Francine and Jim had brought coffee and croissants, and Miriam and I had coffee and an ample quantity of her delicious zucchini bread, so we were well provisioned that morning.
     In addition to birds there have been some other interesting sightings of late as the following pictures reveal.


Silver Spotted Skipper Epargyreus clarus:








     This individual kept returning to the bird droppings, so I assume it was obtaining some kind of mineral enrichment from it.


Eastern Tailed Blue Cupido comyntas:






 Northern Crescent Phyciodes cocyta:



Common Ringlet Coenonympha tullia:


Giant Swallowtail Papilo cresphontes:


Black Saddlebags Tramea lacerata:


     Stay tuned for other exciting species still to come.

All species banded: Eastern Wood Pewee (1), Traill's Flyycatcher (2), Red-eyed Vireo (1) Black-capped Chickadee (1), American Goldfinch (5), Magnolia Warbler (2), American yellow Warbler (1), Blackburnian Warbler (6), Chestnut-sided Warbler (2), Song Sparrow (9).  Total individuals: 30

Land Acknowledgement

We acknowledge that the land on which we are situated are the lands traditionally used by the Haudenosaunee, Anishinaabe, and Neutral People. We also acknowledge the enduring presence and deep traditional knowledge, laws, and philosophies of the Indigenous Peoples with whom we share this land today. We are all treaty people with a responsibility to honour all our relations.

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