Category Archives: Interesting

Interesting articles related to the AT and outdoor lifestyles.

Duncannon Outdoor Club Moonlight Hike

Duncannon Outdoor Club LogoOur moonlight hike was a success even though Mother Nature did not cooperate.  We rescheduled for Sunday and had clear skies and a beautiful view of the Moon and the valley below.  We also had quite a surprise when two shining eyes observed us very closely from a bush along the trail.  Fortunately, it was a deer blinded by our lights and just stood there for us to observe.  At least it wasn’t a coyote or bear.

Once at the top of Peter’s Mt. the 8 phases of the Moon and other aspects were discussed: The lunar phases are created by changing angles of the Earth, Moon and Sun as the Moon orbits the Earth.  Starting with the New Moon,  when the Moon is between the Earth and Sun with the lit side facing away from Earth, the moon is dark and cannot be seen easily. The next phase, the Waxing Crescent,  is a sliver of light less than half full. ( Waxing means getting larger with crescent meaning less than half.)  The 3rd phase, the 1st quarter or half moon, is just that half full.  (Quarter refers to the extent of the Moon’s cycle around the Earth, not its shape.)  Waxing Gibbous is the 4th phase with gibbous meaning more than half.  The Full Moon phase is the 5th phase, with the Earth between the Sun and Moon, and from that point the Moon begins to wane, decrease in size.  From there you have the Waning Gibbous, 6th phase, Third Quarter, 7th phase, and Waning Crescent your last phase.  These are the 8 phases of the moon in the Western Culture.  Non – Western cultures may use a different number of Moon phases, for example there are a total of Continue reading

Where Have All The Monarchs Gone?

Have you seen any Monarchs this year in Pennsylvania? Probably not. The Monarch population is decreasing at an alarming rate! Why?

Milkweed PlantMonarch butterflies need nectar from flowers and the Monarch larva (caterpillar) only eats milkweed. Unfortunately 90% of milkweed and Monarch habitat occurs within agricultural areas and these areas are disappearing due to development. The use of herbicides is another contributing factor to disappearing habitat. The use of herbicides in farming is eradicating the milkweed because milkweed is poisonous and farmers do not want it in their fields. A milkweed plant bound in a bale of hay or eaten by a grazing cow can result in disastrous consequences. The poison, however, is beneficial to the Monarch. The Monarch’s bright orange color warns birds that it is poisonous. The caterpillar only ingests milkweed, consequently during the final stage the butterfly is poisonous. The milkweed plant also grows frequently along roadsides where herbicide sprays and cutting are used to kill roadside growth. Weather has also been unkind to the Monarchs. Migration, life cycle stages, and winter habitat are influenced by weather conditions. The 4th generation of Monarchs migrate from Pennsylvania to Continue reading

Haldeman Island Waterfowl Hike


We held our Haldeman Island Waterfowl Hike on October 13th and it was a great success.  25 of the 29 registrants arrived on time and ready to explore this rarely seen island located at the confluence of the Susquehanna and Juniata rivers.  Our group was comprised of birding enthusiasts, curious kayakers, families out enjoying a day in the fresh air and people just interested in learning more about this exclusive island.

The 990 acre (about 1.5 square miles) Haldeman Island was previously quarried by Pennsy Supply and was later sold to the PA State Game Commission in 1990.  The quarries on the northern half of the island were filled with water, and small islands were built within the ponds to foster Canada Geese.  Unfortunately the Canada Goose program didn’t work out very well but the Bald Eagle program which followed was an enormous success.

We probably saw about 16 different immature bald eagles throughout the morning and once spotted no less than 6 eagles within the view of a single spotting scope Continue reading