Can
Hatchling Senegal Doves be Sexed? by
John Pire
6/01
(Courtesy of the Canadian Dove Society)
I
have spent twenty-five years plus in keeping
and propagating different species of Exotic
Doves/Pigeons. I observe and study the birds
housed in my collection quite close. Many
facets of their behavior and sex differences
have been documented. If the male and female
are not dimorphic then one can be confused
as to what sex they actually have. Many
times "same sex" pairs are put together
and it may be several breeding seasons before
one realizes the error. This article will
describe the sex dimorphism I observed and
documented in the Senegal Dove (Streptopelia
senegalensis).
Another
research endeavor I documented was the sexual
dimorphism in young Greenwing
Doves (Chalcophaps indica) in the 1980’s
and wrote several articles on the subject.
One of these articles was cited in the book
Birds of the World, Volume 4 within the
Columbidae section written by a great friend,
the late Dr Luis Baptista.
The
Senegal Dove is a species in which the sexes
are very similar to each other. Some of
the differences I read about or discussed
with fanciers who kept the Senegal are:
the brightness and or dullness of the head,
neck and back areas. The differences noted
in the "necklace" of a male. The male’s
"black" spots in the neck looking a bit
larger or thicker then the hens. The bowing
and cooing displays of a bird, guaranteeing
it to be a male as hens never bow and coo.
The coloration of the chest area of males
extends further and is brighter then the
females. The chest and belly area of the
hens are a cream color. Color differences
of the legs and feet; iris coloration of
males and females. The amount of the blue-gray
color along the wing shield edge, with a
deeper and thicker area on males then the
females
I
have checked out all the tips I read or
heard about. In having seven pair set up
and being quite observant, I see and record
things many fanciers never notice. I have
females as brightly colored as the males
across the backs and wing shields; I have
personally seen females bow and coo to another
bird, usually to another Senegal in the
adjoining cage. I have two males just as
dull as the females across the back and
wing shields. One pair does match the bright
male and dull female standard. I see some
differences in the chest, legs and feet,
wing shield edge coloration in a few of
the birds, but nothing I would consider
as accurate every time. If comparisons cannot
be done then these items would be of little
use. Using some or all of the tips will
help aid the fancier.
The
sexing tip I use on any adult Senegals I
add to my stock is the "iris" coloration.
In the male the iris is dark colored and
in the females the iris is brown/grey. I
was told about this "iris" tip back in the
early 1980’s and used it for any Senegals
I obtained or sold. In 2000 I set up 7 pair
of unrelated breeding pairs of the Senegals.
I used the "iris" tip on the adults I obtained
and within a month all pairs were on fertile
eggs. I obtained three birds from one fancier
as all males. I sexed the birds using the
"iris" method when I got them home; there
were two males and one female. One had a
dark iris and was a male and one had the
brown/greenish iris, a female. The third
bird had an "iris" coloration I had never
seen in a Senegal Dove before. I likened
this iris color to the yellowish iris color
of the Laceneck or Spotted Dove (Streptopelia
chinensis). I use the term "yellow iris
or yellow eyed" for this possible mutation.
This bird was a male. It was paired with
a normal colored iris hen I had obtained
from a fancier on the East Coast.
Note:
this "yellow"
iris may be a mutation. This yellow-eyed
male may even conceal a hidden mutation.
This aspect is being researched. The "yellow
iris" looks to be dominate. All eleven young
raised to date have the same yellow iris
coloration as the adult male. At this writing
four eggs were laid in the nest in the flight
by two of the oldest hens. These eggs have
been fostered under foster birds & one
is fertile. The hatching hair dimorphism
was used in these young and there are males
and females with the "yellow iris". Research
is being conducted on this mutation &
as of 1/2002 F2 young have been produced
which have the "yellow iris". Upon the completion
of the research data an article will be
forthcoming..
In
the close observations I made of the Senegal
Dove’s young I began to notice that there
was a difference
in the hatching hair of the young. Some
young had a straw colored hair & others
had a reddish tinge to the straw colored
hair. At hatching, the difference is visible
on the head and down the center of the back.
You should record this data. After the youngster
begins to attain the juvenile feathering
the "reddish" color may be somewhat subdued
and the bird may resemble the "non-reddish".
You may then question your first observation.
Not all reddish young have the same reddish
hatching hair. There can be slight variation.
This variation I attribute to the variation
in the adults. I took some pictures and
began to ask some of the fanciers who kept
this specie. None had ever seen this facet
before.
In
talking with several friends it was discussed
that this might be a possible sex dimorphism.
Since very few "mutations" occur in the
Senegal Dove. I was told that the "reddish"
color was possibly the standard for the
young males of the species. I eventually
documented that both "reddish" and "non-reddish"
are standard for captive birds and is also
likely the standard for this species in
the wild.
This
"hair" coloration difference was noted in
all the breeding pairs of Senegals. I use
the terms "reddish" and "non-reddish" for
describing the hatching hair difference.
The "reddish" coloration is retained many
times thru the juvenile plumage. This difference
begins to disappear with the pre-adult molt.
The young then look quite similar. The clutches
of the young could contain the following:
both reddish young, both non-reddish or
one young of each color. Banding the young
while they were still in the nest helped
identify the birds as being described as
being reddish or non-reddish at hatching.
When they attained adult plumage and their
sex could be documented & verified correctly
this data was compared to the hatching data.
You
are probably saying well sex them by the
"iris" coloration. The iris color difference
does not work on any juvenile Senegals.
All juvenile birds have the brown or gray
colored iris similar to the hen’s iris color.
The "dark" iris of the male begins to darken
at about eight to ten months of age. The
dark iris makes the entire eye appear to
be entirely black or dark in color. I have
seen young males begin bowing and cooing
at about six to seven months of age. These
birds can be banded as males. I have never
seen young hens bow and coo.
Sexual
Dimorphism using the hatching
hair is accurate in Senegal Doves
reddish
hatching haired young are "male"
non-reddish hatching haired young are "female"
I
now use this "hatchling hair dimorphism"
on all the Senegal Doves hatched in my collection.
For any adults, I obtain from other fanciers,
I still rely on the "iris" coloration for
sexing.
Once
you actually see this difference you may
want to use any name you want for describing
the hatching hair colors. One does not have
to use the terms "reddish" and "non-reddish"
I use in this article. I hope this article
helps any fancier keeping this specie to
accurately sex their young birds they sell
or distribute to interested fanciers.
As
a member of the Canadian Dove Association
and the American Dove Association I encourage
fellow members and any other dove fanciers
worldwide to share their tips on any aspect
of their experiences in keeping the foreign
doves & pigeons.
1/2002
J. Pire
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