In 1986 John Lawry of Penzance, Cornwall, set out to breed Partridge
Leghorn hens via double mating and now has hens of a quality suitable for
exhibition at the National Show.
In the article which follows, Mr Lawry shares his
experience with Fancy Fowl readers. Any correspondence or enquiries may be
addressed to the author via Fancy Fowl.
The Cock: Producing the Partridge Leghorn cock is little more
than a formality. The Brown Leghorn cock, as exhibited nowadays, is to all
practical purposes the Partridge Leghorn, excepting that it would not have
front neck hackles crimson below the wattles. Hackle feathers, as with the
Partridge Wyandotte, must be lemon and not the amount of orange seen in
the Brown Leghorn. Striping of both the neck and saddle hackles, both to
be devoid of shaftiness, would need attention. To breed the Partridge
Leghorn cock is therefore just a matter of attention to detail. The
exhibition cock, however, would not involve a Partridge Leghorn hen.
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Partridge Leghorn hen-breeding cock from a tenth generation hatch |
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The Hen: Partridge are strictly two breeds with the cock being a
definite black-red and the hen a definite gold pencilled. This means
breeding the cocks and hens from two separate breeding pens - double
mating. Double mating would have to be practiced for many reasons. An
evenly pencilled hen showing fine detail and correct ground colour would
be difficult to obtain from an exhibition cock with a solid black breast.
Yellow legs in females from males with black undercolour in the breast
also requires double mating (note female's Blackbird leg colour).
Partridge hens bred from exhibition cocks with solid black striping in the
hackles would invariably result in pencilled hens with pepperiness in the
feather groundcolour. The hen breeding cock bears little resemblance to
the exhibition cock in Partridge breeds. For example, he must have broken
striping and ticking in the neck and saddle hackles; the exhibition cock
would be of little use. He must have orange hackles, not lemon. He must be
brightly coloured, not dark, as this produces foxy-red females. His back
should be broken with markings and ticking. In order to obtain a hen with
strong feather, strong enough to hold the pencilling, the cock must be
tight feathered and especially so on the thighs. It should be noted that
the Partridge Leghorn hen neck hackle feathers must be pencilled - not
striped, as in the Brown Leghorn hen. |
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Partridge Leghorn hens from Brown Leghorns The first Brown
Leghorns in England were recorded as imported from a Mr A.M. Halsted, Rye,
New York, USA to Lewis Wright on 17 June 1872, who described them thus:
"The hen was salmon breasted with rest of plumage partridge marked or
brown finely pencilled over with dark markings." Certainly, the painting
by J.W. Ludlow of the hen, circa 1872, show them to have pure unmarked
salmon breasts with definite pencilling (as pencilled in the Partridge
Wyandotte/ Gold pencilled Wyandotte) on the back, wing bows and cushion.
The pencilling was not as in the modern Brown Leghorn hen or the Welsummer.
It is not at all clear when the original imported type of pencilling gave
way and became the stippling pencilling as in the modern Brown Leghorn.
The Standard called for a "soft rich brown, very closely and evenly
pencilled with black"; commonly referred to as stippling or peppering with
intricate black specks. To produce the Partridge Leghorn hen one had to
consider the partridge varieties of bantams available, their suitability,
availability, standard of excellence, compatibility with Leghorns, whilst
always bearing in mind the problem of requiring a hen with a white
earlobe, a single recessive comb and yellow legs and a red eye in the hen.
The obvious choice was the hen-breeding strain of Partridge Wyandotte
(Gold-pencilled Wyandotte) which had been kept for very many years and
bred particularly to be free of a 'yellow or foxy tinge'. Partridge
markings were of the essence to the endeavour and, rightly or wrongly, a
Partridge Wyandotte hen-breeding (PWHB) cock was selected and crossed to a
typical, good type, physically sound, yellow-legged, red eye female Brown
Leghorn hen. The hen had a beautiful salmon breast - the subject for much
regret, later - and for future reference - the salmon had been 'fixed'
genetically for well over a century according to Lewis Wright's 1872
description. The salmon would return to haunt me. The Partridge Wyandotte
cock was as long-backed and long-legged as could be found and possibly had
a hint of white in the earlobe.
An experiment in genetic engineering The PWHB cock was crossed
with the Brown Leghorn hen to produce the first generation (filial one or
Fi). The Fi hens were well pencilled for a first cross with pencilling
dominating the stippling. Hens were salmon breasted but pencilling was
visible on the salmon. Ground colour of the feathers was not even
throughout i.e patchy and varying from salmon to brown. The type was
immediately that of Leghorn and, as expected, they had yellow legs but red
earlobes; comb in all being rosecomb. The second year breeding was 'selfing'
the Fi (brother of the first cross to sister of the first cross). This was
a complete failure; for some reason every egg was infertile. In the third
year the second generation F2 was obtained by crossing the Fi hybrid hens
with another unrelated pure PWHB cock, because of the perceived problem
with infertility. F2 pencilling improved somewhat upon the Fi; the pullets
were as deeply salmon breasted as any Brown Leghorn hen. Pencilling on the
thighs was indifferent, feathers being insufficiently strong to hold the
pencilling. The female neck hackles were pencilled; not striped. For over
five years, from Fs through to F/, inbreeding was practiced with sires
crossed to female progeny and dams to cockerel progeny. Pencilling
characteristics were always given paramount importance |
 
Brown colouring (left) for comparison with Partridge colouring
(right)
 
Partridge Feathers |
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in selection and the least salmon breasted pullets were favoured, with
other factors, such as, comb, eye colour and type being of secondary
importance. Generally, from Fa to F? the pencilling improved, especially
on the thighs but the progress, if any, was not constant; there were
generations with little improvement and some which regressed. Indeed the
Fe females lost all the underside pencilling and were back to Brown
Leghorn breasts. The salmon breast was the best 'fixed' secret of the lot.
Indeed the Fe hatch almost ended the challenge - would genetically
engineered bantam flesh be acceptable? The salmon breast was the most
persistent of all the Brown Leghorn characteristics to replace. It was
singularly the most difficult characteristic to overcome. Indeed it was
not until the seventh generation, F/, that the feather ground colour of
the breast was the same as that over the remainder of the hen. The
shaftiness of the breast in all modern Brown Leghorn hens did not persist
into the breast of the Partridge Leghorn somehow the shaft disappeared,
unexplained, with the salmon. If the salmon breast was known to be the
most difficult characteristic to overcome from the beginning one would
have given more thought to the use of the Brown Leghorn hen, but theory is
one thing and the practicalities of genetic engineering is that one has to
use the pool of genes (characteristics) available at any given time.
Looking at Lewis Wright's description of the 1872 importation of Brown
Leghorns with salmon breasts perhaps it should have been obvious that a
characteristic 'fixed' for well over a century could not be re-engineered
in a generation or two. The eighth generation Fs was arrived at as much by
chance as by better judgement. After having kept and bred a Partridge
Wyandotte hen breeding strain for something like two decades and breeding
pure Partridge Wyandottes for that time a single-combed Partridge
Wyandotte cockerel appeared unaccountably, a mutant or 'sport' for sure, a
filius nullius in the pen. Why, one enquires could not the filius nullius
have been hatched eight years earlier and have saved the trouble! This
pure bred Partridge Wyandotte mutant cockerel, single combed, was crossed
back to the F? Partridge Leghorn hens. From Fa onwards all offspring
hatched were fixed with all the Partridge Leghorn characteristics, were
henceforth considered pure breeding (homozygous) for all the
characteristics and any would have been suitable to exhibit at any show as
Partridge Leghorns. Only one characteristic seemed in doubt; the mutant
PWHB single comb was indeed not a pure characteristic, for another two
generations the odd, indescribable, comb type occurred; not single,
walnut, pea or rose. The comb genetics followed in text book style. After
some 20 years of pure breeding the PWHB it would be reasonably considered
the PWHB comb of the first cock was homozygous. Likewise, the single comb
of the Brown Leghorn hen had to be homozygous since single comb is
recessive. One could have expected a single comb to emerge after two
generations with 25% of the chicks single- combed if one selfed the Fi as
planned. However the Fi was not selfed; rather, the rosecomb was
reintroduced for F2 but single combs were produced in F4, exactly as
expected but not in a 25% to 75% ratio of rosecombs - the variation due to
small numbers distorting the ratio. With recessive single comb, once the
comb is bred it is there as a pure breeding characteristic. White earlobes
in the Partridge Leghorn has to be bred for and it cannot be taken for
granted and forgotten. Comb genetics: Rose RR x Single rr R x r Fi Impure
Rose Rr All rose All impure breeding Self Fi Impure Rose Rr x Impure Rr Fa
Rose (pure) RR Rose Rr Rose Rr Single rr Leghorns may of course be
rosecombed in addition to single combed (1984-1996) but for preference
most breeders wish to see them single combed.
Wright's 1872 importation The breeding of the Partridge Leghorn
prompts a number of questions. Lewis Wright's book, first edition, with
the paintings of the Brown Leghorn by Ludlow as imported in 1872 is not
consistent with breeding Partridge Leghorn experience. The painting shows
the Brown Leghorn hen to be pencilled on the back, wings, cushion and tail
coverts (not stippled). The cock has a solid black breast and solid black
striping in the hackles. One questions if these two birds could have been
obtained from single mating. If one breeds the Partridge Leghorn hen from
a cock with a solid black breast and solid black striping in the hackles
the resultant pullets exhibit some little true pencilling but the ground
colour is filled with pepperiness. 'Pepperiness' is stippling as in the
modern Brown Leghorn hen (which comes from a solid blackbreasted
exhibition black-red cock and from single mating.) Perhaps Ludlow's
painting was correct but with the great respect one would suggest the cock
would have required a black breast mottled with red to have produced those
markings on the 1872 Brown Leghorn hen alongside. There is no mention of
double mating the Brown Leghorn. Returning to Wright's description in 1872
- "The hen was salmon breasted with rest of plumage partridge marked or
brown finely pencilled over with dark markings." The obvious observation;
were there two types of hen markings? One originating from double mating
'partridge marked', the other single mated 'brown finely pencilled over
with dark markings'? The first Brown Leghorns recorded in America were
from a ship in Boston Harbour in 1853 to a Mr F.J. Kinney, Worcester,
Mass. This importation came direct from Leghorn in Italy. The hens were
described as having red earlobes, cocks brown-red (not black-red) and the
cocks had dark brown breasts spotted with light brown. Other importations
must have taken place as later records show the earlobes to be white. So,
back to Ludlow's painting of 1872 - perhaps the hen was one of two variant
colours but if the cock was brown-red or partly brown-red cocks on 17 June
1872 as 'combining the Spanish |
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comb, head and body with the colour of Black-red Game; the cock having a
black breast with hackles orange red striped with black'. Apparently
everyone tormented Wright by claiming he was sold Spanish cross Black-red
Game - not until the chicks proved consistent was this disproved. A.F.
Lydon's painting of the Brown Leghorn circa 1913 (Poultry Keeping - Lewer
& Lewer) is not altogether clear in detail; insufficiently clear upon
which to base revolved comment but the hen's back had changed from soft
partridge brown to grey slate; the cock, magnificent black-red which could
have then, and now, be shown as a Partridge Leghorn cock.
Reason The challenge to be the first to produce a Partridge
Leghorn bantam was laid before one by the good and true friend John Martin
Esq of Wisbech, Cambridge (the accepted authority on Leghorn breeding);
the credit is his. However, the challenge was easily accepted; not so
easily executed and took some 14% of one's allotted time according to the
good book; the result was no more rewarding than any task accepted and
completed; there was heartbreak, disappointment and despair along the way
but as with the gentlemen who have bantamized the Spanish and Exchequer
Leghorn it had to be seen if it could be done. Perhaps like another of
man's endeavours it should not be entered into light heartedly,
frivolously or unadvisedly. The lesson in patience and persistence has
been well learned.
Partridge Leghorn Standard Male
Head: dark orange
Neck & Saddle Hackles: bright orange yellow shading to bright
lemon yellow. Hackles free from washiness. Each feather having a clearly
defined glossy black stripe down the middle. The stripe not to run out at
the tip and free from light shaft.
Back, Shoulders, Wing bow: bright red of a scarlet shade; free
from maroon or purple tint.
Wing Barn Solid glossy black.
Wing: Primaries; Outer and inner webs: black. Secondaries; Inner
web: Black. Outer web: rich bay, the rich bay alone showing when wing is
closed.
Breast and fluff: metallic black; free from red or grey
ticking.
Tail, Sickles & Coverts: metallic black; free from white at roots.
(NB Lemon is not orange; beetle green is not raven blue)
Undercolour: black or dark grey; free from white.
Female
Head and Hackle: rich golden yellow; the larger feathers finely
and clearly pencilled black.
Breast, Back, Cushion, Wings: ground-colour - soft light partridge
brown, quite even and free from red or yellow tinge. Each feather
plentifully and distinctly pencilled with black.
Pencilling - to follow the form of the feather and to be even and
uniform throughout. Fine, sharply defined pencilling with three or more
distinct lines of black is preferred to coarse, broad markings, especially
in hens where the pencilling is generally better defined than in pullets.
Pencilling that runs into the brown, peppery markings and uneven, broken
or barred pencilling constitute defects. Light shafts to feathers on the
breast must be penalised.
Fluff: brown, same shade as body, as clearly pencilled as
possible.
Wing: Primaries; Inner and outer web - black. Secondaries: Inner
web - black. Outer web brown, same shade as body, pencilled with black,
showing pencilling when wing is closed.
Tail: black, with or without brown markings with clearly pencilled
feathers up to point of tail coverts. (NB The standard allows for a wide
range in groundcolour between, yet avoiding, the extremes of yellow tinge
and red tinge.)
Undercolour: slate. |
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