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Bird Weights – How can you tell if your pet bird is too heavy or too thin?

Your bird’s weight can be an important indicator of its health.  Unfortunately, however, it’s difficult to access  weight by eye – feathers hide most of the useful signposts, and by puffing up or flattening its plumage a bird can give very different impressions of its size.

Gauging Your Bird’s Weight

With experience, it is possible to develop an “eye” for a bird’s weight – several older keepers I worked with at the Bronx Zoo were amazing in this regard – but a manual check is generally best.  With your bird in hand, feel along each side of the keel, or breast bone.  Even on the tiniest of finches, there should be a layer of muscle (in active, full-winged birds) or fat.  You should not be able to easily feel each side of the keel (the outer edge of the keel, which runs along the breast, will not have a fat/muscle covering).

If you are concerned about your bird’s weight, periodic checks with a gram scale are advisable.

Typical Weights

I’ve listed below some average weights for various birds (in grams).  Bear in mind that captive breeding has led to different strains of birds that vary widely in weight from what is “normal”.  Also, the weights of many species differ from population to population.  Budgerigars, for example, typically weigh between 25-70 grams, while Moluccan Cockatoos range from 650- 1,050 grams.

Zebra Finch                              10-18 Grams

Canary                                     15-30

Pionus Parrots                          200 (Blue-headed Pionus to 250)

Quaker Parrot                           100-150

Crimson Rosella                        130-160

Lovebird                                   50 (Peach-faced Lovebird to 85)

Red Lory                                   160-170

Rainbow Lorikeet                       125-140

Sun Conure                               100-130

Golden Conure                          260-280

Goffin’s Cockatoo                      230-400

Orange-winged Amazon            350-500

Reasons for Weight Gain

Cage Design, Exercise Options:

A small or poorly-designed cage leads to boredom, lack of exercise and increased weight.  This is as true for finches as for parrots.  Even when given ample out-of-cage time, birds with clipped wings tend to burn less calories than do their full-winged brethren.

Diet:

Many species are notoriously picky eaters, and tend to choose the worst diets possible.  Sunflower seeds and mealworms, are common culprits.  Low Fat Pellets are an excellent option; acceptance of these can be encouraged by using LaFeber NutriBerries which integrate pellets with tasty foods.

I consider Foraging Toys to be indispensible – by forcing the bird to work for its food, they stimulate both mind and body.

Fluid Accumulation:

Liver and heart problems can cause fluid to be retained and a consequent increase in weight.

Egg Binding/Retained Eggs:

Egg-bound females will usually seem in acute distress and cease feeding.

Tumors

Hepatic Lipidosis/Fatty Liver

Reasons for Weight Loss

Disease:

Many diseases depress appetite or the ability to digest food.  In some cases (i.e. Avian TB), the afflicted bird may continue to feed but will lose weight none-the-less.  Weight loss is typical of Aspergillosus, PDD, Psittacosis, Candida and many other ailments.

Poisoning:

Via airborne toxins (pesticides) or through chewing toxic materials or plants.

Digestive System Blockage:

From ingested wood chips, plastic, inappropriate grit; feces are usually retained.

Aggression from Cage Mates; Stressful Surroundings:

Check for aggression from a hidden vantage point; consider noise or lights at night as well.

Overgrown or Damaged Beak

External (mites) or Internal (roundworm) Parasites

 

Further Reading

Size and shape are useful earmarks for birders as well…check out this informative article from the Cornell Lab of Ornithology.

Please also see my other Bird Health Articles.

 

Freeze Dried Mealworms – a Healthy, Convenient Food for Wild and Pet Birds

As I write this from NYC it is not yet officially winter, but I’m looking out over waist-high snow drifts.  So I’m inspired to consider a special treat for the visitors to my bird feeders, and one which finches, softbills and other pets relish as well – mealworms.

The Importance of Insects

A bag of Freeze Dried Mealworms is a very useful item for both pet keepers and wild bird enthusiasts to have on hand.  Providing both calcium and much-needed protein, insects continue to figure in the diets of many birds even during the coldest months.  Although not visible to us, insects are always about – some species hibernate, while others pass the winter as eggs or pupae.  These are avidly sought by many typical feeder visitors, but especially Woodpeckers, Chickadees, Nuthatches, Blue Jays and Juncos.  Insects become especially important in late winter, when female birds need to increase their calcium stores in preparation for egg-laying.
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Towards Balanced Bird Diets – That Pet Place Variety Treat Packs

The importance of dietary variety is a constant (annoyingly so, some say!) theme in my writing.  In my own and zoo collections I have noticed improved health, color, vitality and breeding success when appropriate variety is introduced to most any type of bird.  Providing foods in different forms, especially where birds must search or otherwise “work” for their food, is also a very useful means of improving the general quality of their lives.

I have found that even birds that are known to live long captive lives on somewhat limited diets show great improvements in their condition when variety is introduced.  Be it frogs offered to fishing owls or fresh sprouts provided to red bishops and other finches, the vigorous reactions induced by novel foods leaves me with no doubt as to their value.

A Practical and Inexpensive Tool

Of course, life often intrudes on our abilities to provide our pets with diets comprised of dozens of ingredients, however noble our intentions.  That Pet Place Variety Treat Packs offer an ideal solution by combining several types of difficult-to-find foods in one convenient package…and at a lower price than if the items were purchased individually.

Group-specific Products

There is a specially formulated Variety Pack for all types of popularly kept birds, including large macaws and large parrots, conures and small parrots, lovebirds, cockatiels, doves, finches, canaries and parakeets.

Each pack contains a wide variety of foods, with some in the form of toys that encourage natural foraging behaviors.  Lafeber Nutri-Meals and Avi Cakes, which are helpful in introducing pelleted foods to bird diets, are included in some of the packs.  Other ingredients include fruit, nut and berry treats, dried coconut, papaya and other tropical fruits and honey-dipped seed sticks.

Further Reading

For a look at what it was like to prepare bird diets for a collection numbering thousands of individuals, please see my article Alternative Bird Diets, Yesterday and Today.

 

 

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