Not surprisingly, the sudden transition from wintry chills to summer-like 
balminess has ushered in a whole new group of migrants in the past 48 hours. 
Keith and Chris Dunn had some good spring arrivals in Keswick yesterday near 
the south end of Yonge Street where it meets the western stretches of the 
Holland Marsh (about 3kms south of Ravenshoe Rd.)  Birds there included GREATER 
and LESSER YELLOWLEGS, the first SAVANNAH SPARROWs of the spring, and an early 
COMMON TERN.  
   
  I checked the same location this morning and found only two Greater 
Yellowlegs remaining in the vernal ponds on the west side of Yonge, but added 
to the mix in that same vicinity were two AMERICAN PIPITs, several SWAMP 
SPARROWs, three CASPIAN TERNS, and six BARN SWALLOWs.  Horned Larks were 
widespread in the vegetable fields and there were at least six NORTHERN 
HARRIERs hunting over the marshes on both sides of the Holland River.  One male 
was doing a courtship display which included passing a mouse to his mate in 
mid-air after she had done several calls.  There were three OSPREY in the area 
as well, one of them carrying nesting material back to the nesting platform 
west of where Yonge Street dead-ends at the marsh (just over the river where, I 
believe, Bathurst dead-ends north of Queensville Sdrd). 
   
  Also today, Frank Pinella had a COMMON RAVEN at Stouffville Rd. & Leslie St. 
and, while searching in vain for the Eurasian Wigeon at Reesor Pond in Markham, 
he observed a single GREATER YELLOWLEGS.
   
    Keith Dunn has had both Snipe and Woodcock doing aerial displays north of 
the entrance to Silver Lakes Golf Course (Holland Landing) over the past three 
evenings.  WOOD DUCKs continue to show up at the Holland Landing lagoons 
(presumably nesting there) and a very photogenic pair of HOODED MERGANSERs is 
still lingering at the pond in Scalon Creek C.A. in north Bradford.

   
  Ron Fleming, Newmarket
   
  York Region is halfway between Barrie and Toronto.
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Subject: [Ontbirds]OFO Trip: Algonquin Park (21 April 2007)
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Forty-one OFO members and friends enjoyed a wonderful warm (22
degrees C.) birding trip in Algonquin Park today. As with previous OFO
trips here, our primary goal was to find the boreal species that birders
regularly seek in the Park. In the process, we were treated to a very
pleasant day of birding, with 57 species being tallied by the group.

A male and female Spruce Grouse were observed well by everyone north of
the register box on Spruce Bog Boardwalk. This was a lifer for several
people. A female Black-backed Woodpecker near Post 9 on that trail, and
another of these often elusive woodpeckers on a utility pole at Cache Lake,
were enjoyed by many members of the group, but missed by many others,
unfortunately. Four or five Boreal Chickadees at the north end of Opeongo
Road allowed fleeting views for most observers. As is often the case with
this chickadee, they were often frustratingly well-hidden in the black
spruce trees. Gray Jays were fed on Opeongo Road, near their nest where
large young will be fledging very soon. Common Ravens often flew over for
identification comparison with American Crows. Despite extensive searching
of areas where American Three-toed Woodpeckers have been observed
recently, we were unable to find one today; most of these boreal woodpeckers
may have headed back north following the largest winter irruption on record
in Algonquin Park.

First observations of this spring in Algonquin today included Osprey (two),
Sharp-shinned Hawk, Horned Lark (northern race), Vesper Sparrow, and
Savannah Sparrow. A rather early Barn Swallow at the West Gate was
seen there first on Friday. Interestingly, there still have been no Tree
Swallow sightings in Algonquin this spring, likely reflecting the increasing
scarcity of this aerial forager here, plus the extensive mortality among
migrant Tree Swallows that has occurred during cold weather this month.

Thanks again to all those who attended. It was a magnificent day to be out
birding.

Ron 

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