Showing posts with label Blackpoll Warbler. Show all posts
Showing posts with label Blackpoll Warbler. Show all posts

Thursday, May 14, 2020

Crops & Clips: Spring Migration

Birding during spring migration in southeastern Florida is usually less productive than in autumn. In past years there have been pleasant surprises. One of the best years was 2011, when I found nine warbler species one morning in mid-April. 

A highlight then was a Blackpoll Warbler:

Blackpoll Warbler male 20110414

Least Terns return to our lake on or very close to April 15 every year:

Least Terns 2-20120418

Their courtship rituals begin almost immediately:

Least Tern courtship 2-20120419

Solitary and Spotted Sandpipers (from left to right) pass through...

Solitary and Spotted Sandpipers 20150416

...as do Black-necked Stilts:

Black-necked Stilt 2-20160412

Our winter residents are departing....

Black-and-White Warblers:

Black-and-White Warbler 09-20160414

Gray Catbird:

Gray Catbird 20111108

Blue-headed Vireo:

Blue-headed Vireo 04-20181225
  
Blue-gray Gnatcatcher:

Blue-gray Gnatcatcher 01-20190923

Our Son-in-Law was born in Sagua la Grande on the north coast of Cuba, which spreads out about 100 miles south of Key West. His father speaks of seeing large numbers of colorful birds filling the trees in springtime, waiting for favorable winds to help them cross northward over the Straits of Florida. 

This phenomenon was portrayed dramatically in these Key West velocity radar images which I captured overnight on April 26, 2017. The echoes of migrating birds moving towards the radar are depicted in green, while those moving away to  the north are red:

April 25, 2017 at 9:52 PM: 

Key West radar 0952 PM APR 25, 2017

April 26, 2017 at 5:15 AM:

Key West radar 0515 AM APR 26, 2017

At the same time that morning, the Miami Radar returned dense echoes passing overhead. Our home, indicated by the "+" mark, inland  between Miami and Fort Lauderdale, appeared to be in the middle of a mass migration:

Miami radar 0515 AM APR 26, 2017 

The results on the ground were not quite as impressive, though I did find 16 individuals of seven warbler species. I expected that birds would be dropping off the trees! In truth, the radar is also capturing the huge biomass "bloom" of insects which are mostly being blown along by the prevailing winds. 

This spring's migration has been rather disappointing. Prevailing winds from the southeast often direct the migrants towards the west coast of Florida and even across the Gulf of Mexico. Also, since migrating birds can fly up to 50 miles an hour with a favorable tail wind, they can pass over south Florida well before settling down at sunrise. 

My  most memorable warbler sightings this year were small flocks of Cape May Warblers, on April 19 and 28:

Cape May Warbler 02-20200419

Cape May Warbler male 01-20200428

Cape May Warbler male 02-20200428

FACTOID: "The Cape May Warbler breeds in boreal coniferous forests, where it sings, feeds, and nests high in the spruce canopy... Although the first illustrations of this species were based on birds taken in Canada, its English name refers to the locality from which Alexander Wilson first described the species—Cape May, New Jersey—where it was not recorded again for more than 100 years..." (Ref: Cornell Lab Birds of the World)

After a very dry winter and early spring, we are finally entering our wet season. Sunrises can be spectacular...

View from our back patio on May 6, 2020:

Monaco Cove at sunrise 20200506 

The sky had cleared by nightfall as the Full Flower Moon rose over our lake:

 Monaco Cove  moonrise 20200506

Before sunrise In the local wetlands, a thunderstorm along the Atlantic coast cast a shadow which arched over to the Everglades on the opposite horizon:

Shadow of thunderhead before sunrise 02-20200430

Shadow of thunderhead before sunrise 03-20200430

Tiny but beautiful Dainty Sulphur butterflies danced over grassy spots:

Dainty Sulphur 20200506


= = =  = = =  = = = =  = = = = =

Linking to:

Fences Around the World

Skywatch Friday

Weekend Reflections

Saturday's Critters

BirdD'Pot

Camera Critters

All Seasons

Wordless Wednesday (on Tuesday)

Our World Tuesday

________________________________________________

Please visit the links to all these posts to see some excellent photos on display
________________________________________________