Eurasian Collared Dove |
Several
non-native bird species have moved into North America, most recently the
Eurasian Collared Dove. This bird, originally native to the Indian sub-continent spread
following an accidental release in the Bahamas in the mid-70s. These non-native
species (due mainly to the lack of
natural enemies) will out-compete our native bird species. Recent invaders
likely to be seen in north Texas are the Monk Parakeet and the Nutmeg Mannikin.
Actually, the House Sparrow (really a
Weaver Finch), the Starling, the Rock Dove and the eastern population of
the House Finch are “invaders” too – having been brought here against their
will in the past.
Not hard
to figure out what kind of bird it is.
Several times
I’ve been asked to I.D. a bird. The query goes something like ”the average-size
bird is black, but it has a yellow head”. I instantly know it’s a Yellow-headed
Blackbird. They’re traveling through here now, having spent the winter in Mexico
or the deep, deep south of Texas. Some will stay here all summer, but the majority
will continue north. The male only is black and yellow – the female is all
brown. YHBBs prefer wetlands and open, freshly-cultivated fields. That’s where
their main food source is (insects). They eat seed sometimes, if insects aren’t
handy. They feed and travel in mixed flocks, mainly with the slightly smaller Red-winged
Blackbirds. An interesting phenomena is that YHBBs and other migratory birds
are arriving about 5 days earlier than historical data indicate. What that means is to look sooner
for the many warblers and such that will be moving through north Texas.
Yellow-headed Blackbird |
OWEN YOST, in addition
to being a blogger, is a licensed Landscape Architect emeritus who has lived
and worked in north Texas for over 30 years. He is the recipient of a Lifetime
Achievement Award of the Native Plant Society of Texas, and is a member of the
American Society of Landscape Architects (ASLA), International Federation of
Landscape Architects, National Wildlife Federation and the Audubon Society. His
office is at Yost87@charter.net in Denton
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