Owl Pellets ... & Discovery Days
S.O.S. is pleased to
announce the launch of its Owl Pellet Discovery Days,
the first of which is next week on May 24th.
During the
morning, youngsters can come along to the Suffolk owl
Sanctuary, when they will be given a guided tour of
the Centre, then do a spot of Owl supervised pellet
dissection & detection, and finally be able to
watch our 12.30 flying display. Each participant will
be given a Pellet Discovery Kit comprising a large
owl pellet, tweezers, prod, magnifying glass and
information all about owls, their pellets and what
you are likely to find inside them. The cost for each
activity session, including all the above, is £6.50
per participant.
What is an Owl Pellet? Well, it's what is formed
after an owl has eaten its prey (such as small mice
and voles) and comprises the bits that cannot be
digested, like bones, teeth, fur etc. The owl coughs
out these bits in pellet form about six to eight
hours after it has eaten and usually produces two
every twenty four hours. The pellet must be
regurgitated before the owl can feed again.
If you can't make
it to the Sanctuary at Stonham Barns, then you may
think about doing some detective work in the
countryside by looking for owl pellets you can
dissect for yourself. But before you
start, a warning:
along with other birds, owl nests & roosts are
protected by law and it is illegal to remove eggs or
young from them, or interfere with them or their
nests & roosts in any way. So, if you do go looking pellets,
please remember to leave anything that looks like a
nest well alone.
Now, onto the search, and to begin
with a little detective work may be required to
discover if you have owls in your area. Firstly, look
for the signs - perhaps take a quiet walk around the
local park or recreation ground (but ensure an adult
always knows where you are) and see if you can find
where the owls roost or nest. Remember that a source
of prey for the owls must be close by, as owls will
only roost in an area where there is an abundance of
small mammals to feed on. We suggest asking the park
keeper or wildlife ranger if they know of any place
where owl pellets may be safely collected.
Here are a few pointers. Barn Owls like to roost in
old farm buildings or hollow, often derelict trees.
Look on the side of the building or tree for white
streaks, which are the tell-tale signs of owl
droppings and usually indicate that they use the
roost regularly. Now look below the roost site for
small grey or black packages - these are the pellets.
Barn Owl pellets are usually about 35mm - 65mm (1.5"
- 2.5") in length, and are very smooth and round in
shape. Should you be lucky enough to find one pellet
at the site, then it is likely you will have found a
regular supply BUT please remember to respect the
owls and indeed the owner of the barn.
Tawny Owls, which are the commonest of owl species to
be found in Britain, are as happy living in country
woodlands as they are in wooded areas near the hustle
and bustle of towns, so whichever, you are most
likely to have a Tawny Owl around if you are near an
area with plenty of trees. Tawny Owls like to roost
during the day close to the trunk of a tall mature
trees or conifers, but they do not have singular
favoured roosts and use any suitable perch to sit on
and regurgitate their pellets. It's worth remembering
that Tawnies usually produce their pellets usually
while out hunting so although a common bird, their
pellets can be hard to find. It's worth asking
local people if they have ever found pellets in their
vicinity to speed up your search.
Tawny Owl pellets are much more furry than Barn Owl
pellets and tend to taper off at one end. They
measure about 25mm - 45mm (1' - 2") in length. They
seem much less solid than the Barn Owl pellets and
the contents can be seen easily within the mass.
Little Owls are our smallest owl and can often easily
be seen during the day and at dusk. They like old
dense hedgerows, trees in parkland and dead trees -
their favorite roosts are in ancient Oak and Ash
trees and they also like Willow pollards. As you
would expect, the pellets are small, only 16mm-35mm
(.75" - 1.25") long and are elongated with a distinct
point at one end. They weigh very little, may feel
spongy if pressed and are likely to contain insect
remains such as wing cases. The pellets are produced
out in the open while hunting, and so are likely to
be stumbled on accidently.
Finally,
Short and Long Eared Owls are rarely seen in the UK,
and their pellets more difficult to find. The Short
Eared Owl is best seen in winter months, when it
hunts on salt marshes close to the mouth of estuaries
and salt flats and the pellets are often deposited on
the hard-to-get-at the grassy banks of a sea walls
and estuary edges. Meanwhile the timid and
well-disguised Long Eared Owl prefers to roost in
dense thorny hedges, scrub areas such as tall bramble
bushes on farmland and close to the edges of
woodlands. Their roost sites can be used by up to ten
birds, year after year, which means that lots of
pellets are likely to build up over a period of time
all in one place - a real find if you come across
them!