SKU: 4002230871

Medusa Bird Feeder Defender

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Description

Medusa Bird Feeder DefenderMUST be bought in multiples of 4 Case Size 4 Need product images for your website? Click Here Print Your Own POS Fact Sheet Click Here Backboard POS Click Here Roundels Click Here Dimensions: 680 x 266 x 266 mm Barcode: 679505022987 Bird Feeder not included The Medusa Feeder defender is a Bird Feeder Protector that is perfect for small birds but discourages larger birds (Jackdaws, Rooks, Pigeons, Magpies etc.). Some bird species, such as these larger

MUST be bought in multiples of 4

Case Size 4

Need product images for your website? Click Here

Print Your Own POS Fact Sheet Click Here

Backboard POS Click Here

Roundels Click Here

Dimensions: 680 x 266 x 266 mm

Barcode: 679505022987


Bird Feeder not included

The Medusa Feeder defender is a Bird Feeder Protector that is perfect for small birds but discourages larger birds (Jackdaws, Rooks, Pigeons, Magpies etc.). 

Some bird species, such as these larger birds, can clear out a seed feeder in a single morning, leaving nothing for the smaller bird species that visit your garden. The Medusa Defender has been designed to work with various hanging bird feeders.

After a short while, the smaller birds visiting your garden will learn to comfortably flit between the hanging chains and soon begin to use them as perches when approaching the feeder or waiting for their turn to feed. The bars on the top of the Defender also provide a comfortable staging post for small birds to perch and wait their turn. On the other hand, large birds dislike the feeling of the chains on their flight feathers, and most will soon give up on trying to feed on the protected feeder. Use a separate Medusa Feeder Defender for each feeder you wish to protect from larger birds.

Important : to have the desired effect the feeder must be of a standard type because obviously feeders with a wide tray defeat the object of the defender by providing a grab point

The defender was tested over 3 years where mobbing was a problem and provided safe feed zone for small birds

It will not defend against starlings (which need support) or that sized bird .

Siting

Site the Defender like a hanging bird feeder - away from nearby obstructions such as tree branches or bushes. Then hang your cylindrical seed, nut or fat feeder from the hook on the lower inside lid of the defender. For the defender to be most effective, ensure the bottom of your feeder does not hang lower than the bottom of the dangling chains.

 

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SKU: 4002230871

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4.7 ★★★★★
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Austin
Cuba, US
★★★★★ 5
Engaging Read for Beginners and Techies Alike
Format: Paperback
An engaging and accessible exploration of how computers really work. The author breaks down complex concepts into simple, relatable explanations, making topics like binary, logic gates, and basic circuits far less intimidating. For newcomers, it’s a great way to build a foundational understanding of computer theory with just a touch of electrical engineering. As someone with a technical background, I still found it entertaining; the examples and analogies added fresh ways to frame ideas I already knew. It’s the kind of book that can bridge the gap between “I use computers” and “I understand what’s happening under the hood.” Highly recommended for anyone curious about what makes hardware and software tick, whether you’re starting from scratch or just want a new perspective.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025
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Verified Purchase
Peter
Lake Worth, US
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up. Recommend to everyone wanting to become a programmer, or just interested in computers.
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Reviewed in the United States on January 12, 2026
M
Verified Purchase
Michael Donoghue
Massapequa, US
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block. This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles. I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading. The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great. If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
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Reviewed in the United States on January 31, 2023
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Verified Purchase
Yura
Whiting, US
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition. For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc. What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves. Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
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Reviewed in the United States on January 6, 2023
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Verified Purchase
Ben Fleury
Battle Creek, US
★★★★★ 5
One of the few books worth your time
Format: Paperback
If you want to learn computers, start here. Learning from a historical perspective removes complexity of trying to start with say GPUs - you learn just like computer engineers did, incrementally.
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Reviewed in the United States on April 27, 2026

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