Are you saying that "gray-ghosts" can be either male or female?
> Hello VT Birders:
> In response/support to Jane's statement about seeing more adult male
> Northern Harriers in winter:
> In general, mature males in good health (the breeders) tend to drift south
> from their breeding territories as little as possible and return to them
> quickly in late winter/spring to secure it once again.
> Given that VT sits at the northern edge of the wintering range for Northern
> Harriers, we end up seeing a higher percentage of "gray ghosts" roughly
> We observe this with Northern Harriers because they are sexual dimorphic.
> This holds true for other species, like Red-tailed Hawks, but there is no
> way to sex them so it goes unnoticed. Even if you are banding a Red-tailed
> Hawk, it gets reported to the banding lab as "sex unknown" due to
> overlapping measurements.
> Wintering raptors in the Champlain Valley is one of the highlights of being
> a VT birder, at least from my perspective.
> Good birding,
> Eric Hynes
> On Mon, Nov 11, 2013 at 2:42 PM, Jane Stein <[log in to unmask]> wrote:
>> Broad-winged hawks are the only raptor that all leave for the winter. All
>> the others are partial migrants, and our winter population here is made up
>> of some year-round residents and some that have moved down from further
>> north to spend the winter.
>> Somebody with better information please correct me on this, but it's my
>> impression that with Harriers, the females and immatures tend to migrate
>> more, and we often end up with more adult male "grey ghosts" during the
>> winter. I recall on one trip several years ago counting 7 adult male
>> Harriers in and around the Dead Creek area on what was probably an up year
>> for the vole population.
>> On 11/11/2013 2:25 PM, Barbara Powers wrote:
>>> A Northern Harrier was sitting in a tree in our field. It later took off
>>> to hunt. I thought they had all left for warmer climes. Nice to see it up
>>> Barbara Powers
>>> Manchester Center
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