Outdoor Ontario

Birding Reports => Migration Movements => Topic started by: mr.sharp-photo on April 24, 2013, 10:18:53 PM

Title: This Friday = big influx?
Post by: mr.sharp-photo on April 24, 2013, 10:18:53 PM

South winds on Thursday, rain on Thursday eve and south winds on Friday.
should Friday morning be a good day, even with the coolish temps?

or will Sunday bring a bunch of warblers? (16 C and winds from the south AND rain saturday night)

Title: Re: This Friday = big influx?
Post by: newfoundlander61 on April 25, 2013, 06:28:54 AM

Generally wind/rain overnight can cause a fallout of warblers that are tired from flying which will result in them being lower to the ground instead of up high due to exhaustion caused by the wind & rain. No rain and no wind means that if a fallout occurs they will be much higher in the trees. Best time  see warblers is between 7:00 and 9:00 AM, but not restricted to seeing movement during the rest of the day due to being hungry from migration flights. Major fallouts occur during two types of weather conditions. First, when waves of migrants meet cold northwest winds that ground large numbers of birds. Second, big waves also arrive on warm fronts with periods of light rain starting after midnight, which ground migrants.

Title: Re: This Friday = big influx?
Post by: Reuven_M on April 25, 2013, 08:35:58 AM

It doesn't look like fallout conditions to me, but there will likely be big movement this weekend and early next week from the forecast right now.

Title: Re: This Friday = big influx?
Post by: newfoundlander61 on April 25, 2013, 08:59:40 AM

Heres an intereting site regarding migration.


http://virtual.clemson.edu/groups/birdrad/

Title: Re: This Friday = big influx?
Post by: Reuven_M on April 25, 2013, 09:22:15 AM

I use this site to look at the radar: http://weather.rap.ucar.edu/radar/ (http://weather.rap.ucar.edu/radar/) (choose "Regional Reflectivity" and pick Buffalo on the map)