10,000 Birds

APRIL 5, 2022

per cent of individuals of a species at a given time” and a vagrant bird as a bird that shows up outside of this range (p. There are many more factors than I imagined: compass errors, wind drift, overshooting, extreme weather and irruptions, natural dispersal, and human-driven vagrancy. other compass senses like the stars?–and

Birds 262

Birds Compassion Eagles Science 262

10,000 Birds

MARCH 11, 2011

Today we are looking at two species that can be difficult to separate under typical field conditions. I have encountered this situation only one time in my birding experience. I tried on a purist attitude and chose not to ID the species. To answer this quiz, please do NOT indicate the species of either bird.

2011 124

2011 North America Deer America 124

10,000 Birds

MARCH 8, 2011

Getting to know the subtleties in differences between closely related species takes years of dedication and practice. Thirdly, many species of shorebirds display such vast differences in their summer and winter plumages that it is always interesting to note how some birds in the same flock are in contrasting stages of plumage.

Florida 196

Florida South Africa 2011 Africa 196

10,000 Birds

MARCH 18, 2011

This species is not only usually the earliest, but the most common. What’s remarkable about this species is what we don’t see here: the extremely long migration that this species makes, with some individuals traveling from Sub-Saharan Africa to Greenland and back every year.

Cyprus 145

Cyprus 2011 Deer New York 145

10,000 Birds

MARCH 6, 2011

Informed literature bears out my experience that most birds are seen singly or in pairs. Jochen Mar 7th, 2011 at 5:51 pm Redgannet, almost all song birds at least in North America (and the Orange Thrush sure won’t be the only old world bird to have them, too) have these filamental plumes on their nape. Great shots!

2011 188

2011 Deer India New York 188

10,000 Birds

MARCH 9, 2011

And I haven’t even started to write about ageing them … What are your experiences, and what is the colour of the claws on your local gull species? OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more! Ring-billed Gull - yes indeed. Get yours today!

2011 165

2011 Birds Deer Europe 165