Shorebirds and swallows continued to move through the area in moderate numbers from the 11^th – 20^th and there was a slight but noticeable increase in migrant songbird activity as well. Nineteen fall ‘firsts’ were noted including ones-and-twos of eight warbler species. Daily species diversity at the station ranged from a low of 29 on August 11^th to a high of 51 on the 18^th.

Gull numbers reached a near station-high on August 11^th when almost 5000 birds were estimated at the tip on the morning census – mostly Ring-billed along with small numbers of Bonaparte’s, Herring, and Great Black-backs. Common Terns were numerous on the 14^th, with 1200 birds noted. Shorebirds were observed on most days, with five species recorded on the 12^th including 11 Sanderlings, 3 Semipalmated Plovers, Semipalmated and Least Sandpipers.

An Osprey and six shorebird spp. were observed on August 15^th along with a few songbirds including American Redstart and Northern Waterthrush. A Sora calling at Fox Pond on the 16^th and a Greater Yellowlegs and Canada Warbler the next day were both fall ‘firsts’. August 17^th was the most active morning at the station since coverage began on the 1^st, with 51 species noted, including eight warbler species, along with a nice variety of others. Fall ‘firsts’ included Bobolink, Ovenbird, Blackburnian and Black-and-white Warbler.

The 19^th was equally active – fifty species were tallied during the morning coverage period. A Chestnut-sided Warbler was new for the season. Other species on the day included small numbers of Least and Yellow-bellied Flycatcher, Barn and Bank Swallow, Blue-gray Gnatcatcher, Wood Thrush, and another eight warbler spp. The wind returned to the south on the evening of the 19^th and migrant numbers tapered off on the final day of the summary period.

PIBO’s next migration update will be posted on September 2^nd.