Pennsylvania Game News - July 2020 - 61

By Marcia Bonta

L

ATE LAST JUNE, I sat next to our
mountaintop vernal pond that has
become a permanent water source the
last couple of wet years. For an instant,
I glimpsed a blue-headed vireo as it foraged on a maple tree across the pond.
Then I heard a singing yellow-throated
vireo, followed by the droning song of a
red-eyed vireo.
I was used to hearing red-eyed and
blue-headed vireos singing in our forest,
but I was not as familiar with yellowthroated vireos.
Our son Mark, who has keener ears
than I, heard the same singing yellowthroated vireo at the pond the following
day, then another one singing outside the
guesthouse, day after day, in late July and
early August.
The vireo family, which includes 14
North American species, is one of the few
songbird families that is thriving.
Blue-headed vireo numbers have
doubled since the 1970s. Red-eyed
vireo numbers increased slowly, but
steadily, from 1966 to 2014. And on

our property during various bird counts,
red-eyed vireos always have been the
most-abundant songbird species.
Yellow-throated vireos is more elusive
than blue-headed and red-eyed vireos.
However, the Partners in Flight survey
reported they are common birds with a
population that increased by 62 percent
from 1970 to 2014.
In Pennsylvania, the Breeding Bird
Survey recorded a 1.2 percent yearly
increase since the 1960s with an estimated
48,000 yellow-throated males in our state.
Still, blue-headed and red-eyed vireos
have been studied far more than yellowthroated vireos. Researchers have found
all three species nest in mature forests and
spend their winters in a variety of forests,
mostly south of our borders.
The red-eyed
travels the farthest to large

Yellow-throated

Vireo

An increasing population.
JULY 2020

61



Pennsylvania Game News - July 2020

Table of Contents for the Digital Edition of Pennsylvania Game News - July 2020

Contents
Pennsylvania Game News - July 2020 - Intro
Pennsylvania Game News - July 2020 - Cover1
Pennsylvania Game News - July 2020 - Cover2
Pennsylvania Game News - July 2020 - Contents
Pennsylvania Game News - July 2020 - 2
Pennsylvania Game News - July 2020 - 3
Pennsylvania Game News - July 2020 - 4
Pennsylvania Game News - July 2020 - 5
Pennsylvania Game News - July 2020 - 6
Pennsylvania Game News - July 2020 - 7
Pennsylvania Game News - July 2020 - 8
Pennsylvania Game News - July 2020 - 9
Pennsylvania Game News - July 2020 - 10
Pennsylvania Game News - July 2020 - 11
Pennsylvania Game News - July 2020 - 12
Pennsylvania Game News - July 2020 - 13
Pennsylvania Game News - July 2020 - 14
Pennsylvania Game News - July 2020 - 15
Pennsylvania Game News - July 2020 - 16
Pennsylvania Game News - July 2020 - 17
Pennsylvania Game News - July 2020 - 18
Pennsylvania Game News - July 2020 - 19
Pennsylvania Game News - July 2020 - 20
Pennsylvania Game News - July 2020 - 21
Pennsylvania Game News - July 2020 - 22
Pennsylvania Game News - July 2020 - 23
Pennsylvania Game News - July 2020 - 24
Pennsylvania Game News - July 2020 - 25
Pennsylvania Game News - July 2020 - 26
Pennsylvania Game News - July 2020 - 27
Pennsylvania Game News - July 2020 - 28
Pennsylvania Game News - July 2020 - 29
Pennsylvania Game News - July 2020 - 30
Pennsylvania Game News - July 2020 - 31
Pennsylvania Game News - July 2020 - 32
Pennsylvania Game News - July 2020 - 33
Pennsylvania Game News - July 2020 - 34
Pennsylvania Game News - July 2020 - 35
Pennsylvania Game News - July 2020 - 36
Pennsylvania Game News - July 2020 - 37
Pennsylvania Game News - July 2020 - 38
Pennsylvania Game News - July 2020 - 39
Pennsylvania Game News - July 2020 - 40
Pennsylvania Game News - July 2020 - 41
Pennsylvania Game News - July 2020 - 42
Pennsylvania Game News - July 2020 - 43
Pennsylvania Game News - July 2020 - 44
Pennsylvania Game News - July 2020 - 45
Pennsylvania Game News - July 2020 - 46
Pennsylvania Game News - July 2020 - 47
Pennsylvania Game News - July 2020 - 48
Pennsylvania Game News - July 2020 - 49
Pennsylvania Game News - July 2020 - 50
Pennsylvania Game News - July 2020 - 51
Pennsylvania Game News - July 2020 - 52
Pennsylvania Game News - July 2020 - 53
Pennsylvania Game News - July 2020 - 54
Pennsylvania Game News - July 2020 - 55
Pennsylvania Game News - July 2020 - 56
Pennsylvania Game News - July 2020 - 57
Pennsylvania Game News - July 2020 - 58
Pennsylvania Game News - July 2020 - 59
Pennsylvania Game News - July 2020 - 60
Pennsylvania Game News - July 2020 - 61
Pennsylvania Game News - July 2020 - 62
Pennsylvania Game News - July 2020 - 63
Pennsylvania Game News - July 2020 - 64
Pennsylvania Game News - July 2020 - Cover3
Pennsylvania Game News - July 2020 - Cover4
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