Migration Monitoring at TTPBRS-May 6-12

Brewster's Warbler (d.derbyshire)

The 7-day period began on a high note on May 6 with the spring arrival of many warbler species including Blackburnian, Chestnut-sided, Cape May and Northern Parula among others. A total of 91 birds were banded that day with only about half of our nets running due to high winds. Myrtle Warbler and White-throated Sparrow were the primary species encountered on both the surveys and in the nets. Calm conditions that evening gave these birds an opportunity to leave as far fewer warblers were apparent on the 7th and indeed for the rest of the week. It was a little more active on the 8th of May as 66 birds were banded and season firsts of Swainson's Thrush, Ruby-throated Hummingbird and Great Crested Flycatcher were recorded. Relatively few migrants were found on the 9th as birds had ample opportunity to pass over us at night with the warm and calm conditions, however on this day singles of Hooded Warbler, Blue-winged Warbler and Brewster's Warbler were banded. Warblers were notable in their absence on the 10th as 32 birds were banded which consisted of a small influx of Least Flycatcher and Wood Thrush amongst the sparrows. The first ever record of Virginia Rail for TTPBRS occurred on this day when a single individual was observed on more than one occasion running down one of our net lanes! The final day of the update period featured decent tallies of Least Flycatcher (6 banded), White-throated Sparrow and Magnolia Warbler but low species diversity overall as only 8 species of warbler were found. The second record of Clay-coloured Sparrow for TTPBRS occurred on this day when a singing bird was heard and observed in the dogwood patch near the parking lot (both records of CCSP from this season were of birds in the same location).

Friday May 12 was the final day of the Winged Migration program for schools in spring 2006. The program went very smoothly and both the birds and the weather were very cooperative. Thanks are due to Paul Barrie (educator) and Nick Tredille (educational assistant) for their excellent work with the students!

Reminder that the TTPBRS News and Sightings board is updated regularly with daily notes and totals from the station and the occasional photo so check in often!


May 6
9-Ruby-crowned Kinglet
7-Nashville Warbler
1-Northern Parula
1-Cape May Warbler
33-Myrtle Warbler
3-Blackburnian Warbler
May 8
2-Least Flycatcher
1-Brown Creeper
9-Hermit Thrush
2-Rose-breasted Grosbeak
May 9
1-Blue-winged Warbler
1-Brewster's Warbler
1-Hooded Warbler (1st banding record for TTPBRS, 3rd overall record)
3-Lincoln's Sparrow
May 10
1-Swainson's Thrush
May 12
1-Northern Rough-winged Swallow
2-Wood Thrush
5-Magnolia Warbler
1-American Redstart

May 6
35-Ruby-crowned Kinglet
3-Chestnut-sided Warbler
105-Myrtle Warbler
1-Solitary Sandpiper
May 7
3-Bonaparte's Gull
1-Forster's Tern
May 8
3-Great Crested Flycatcher
1-Northern Parula
60-White-throated Sparrow
6-Least Sandpiper
May 9
May 10
1-Virginia Rail (1st record for TTPBRS)
2-Eastern Kingbird
May 12
14-Least Flycatcher
12-Magnolia Warbler
1-Clay-coloured Sparrow (2nd record for TTPBRS)

Season Banding Total

Season Species Total

Dan Derbyshire
Coordinator, Tommy Thompson Park Bird Research Station (TTPBRS)
Toronto and Region Conservation

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