bald_eagle
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| bald_eagle [2023/09/26 16:18] – [III. BALD EAGLES IN HUMAN CULTURE] zookeeper | bald_eagle [2023/10/14 20:22] (current) – zookeeper | ||
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| Bald Eagles are most often found in areas which are close to water – such as coastlines, lakes – and even coniferous swamps. Even so, it is an adaptable bird – inhabiting simultaneously the tundra of Canada and Alaska as well as the deserts of Mexico. In addition to being adaptable in habitat, bald eagle diets are also highly adaptable, with the birds being capable of eating a wide variety of foodstuffs. The species mainly eats fish, which it eats often in the summertime – but also is capable of eating small or medium-sized birds such as waterfowl, small mammals such as rabbits or muskrats, invertebrates, | Bald Eagles are most often found in areas which are close to water – such as coastlines, lakes – and even coniferous swamps. Even so, it is an adaptable bird – inhabiting simultaneously the tundra of Canada and Alaska as well as the deserts of Mexico. In addition to being adaptable in habitat, bald eagle diets are also highly adaptable, with the birds being capable of eating a wide variety of foodstuffs. The species mainly eats fish, which it eats often in the summertime – but also is capable of eating small or medium-sized birds such as waterfowl, small mammals such as rabbits or muskrats, invertebrates, | ||
| The breeding season of the bald eagle is dependent on the sub-species – the Northern Bald Eagles seem to breed predominantly from April to August – whereas the Southern Bald Eagles seem to breed predominantly from October to April. Bald Eagles seem to prefer their nests being placed in coniferous trees – though in some cases it also can be placed on the ground. When complete, the nest can be very large – about 2.5 metres in diameter, and about 4 metres deep. Both of the sexes contribute to construction of the large nest, though females predominantly do the placement of foundation of materials. Bald Eagles may return to the same nest for many years. On occasion, the nests can be even larger – the largest North American bird nest recorded to date was that of a bald eagle nest – found in Florida, the nest was almost 3 metres in diameter, and 6 metres deep. The nest is thought to have weighed more than 2000 kilogrammes. | The breeding season of the bald eagle is dependent on the sub-species – the Northern Bald Eagles seem to breed predominantly from April to August – whereas the Southern Bald Eagles seem to breed predominantly from October to April. Bald Eagles seem to prefer their nests being placed in coniferous trees – though in some cases it also can be placed on the ground. When complete, the nest can be very large – about 2.5 metres in diameter, and about 4 metres deep. Both of the sexes contribute to construction of the large nest, though females predominantly do the placement of foundation of materials. Bald Eagles may return to the same nest for many years. On occasion, the nests can be even larger – the largest North American bird nest recorded to date was that of a bald eagle nest – found in Florida, the nest was almost 3 metres in diameter, and 6 metres deep. The nest is thought to have weighed more than 2000 kilogrammes. | ||
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| Bald eagles are rather social outside of the mating season, congregating at communal roosts. However, they are not co-operative in activities such as hunting or feeding – where rivalry often occurs between bald eagles and also other predators. In the mating season, however, they are very territorial – fending off rivals to their mates and offspring. The species is monogamous – it mates for life, except in the case either mate dies or does not return. Bald eagles only breed once a year. Bald eagle eggs are incubated for about 25 days before hatching, and are speckled in colouration. Bald eagles seem to prioritise maximising egg number – in seasons of food abundance, as many as three eggs will be laid – but in other times, only two or just one will be laid. In a typical family structure, the male bald eagle provides food for the brooding female and their chicks. Though later in the chicks’ life, both parents bring food to the nest, with the female seemingly bringing more food. The female spends much time tending to the young in the first three or so weeks – though after this, the parents seem to leave the nest unattended for longer. After about 80 days or so, bald eagle chicks begin to fly. In increased maturity, bald eagle chicks also become increasingly violent – with killing of siblings common within the species. Typically, the first-hatched chick is the one who will kill any chicks which hatch afterward. They become sexually mature at 5 years of age typically – though in some populations only 8% or so reach breeding age. The oldest captive bald eagle on record was about 47 years old – and the oldest wild bald eagle on record was a New York bird which died at age 38. However, many wild birds die earlier than this, with a typical lifespan being one of about 20 years. | Bald eagles are rather social outside of the mating season, congregating at communal roosts. However, they are not co-operative in activities such as hunting or feeding – where rivalry often occurs between bald eagles and also other predators. In the mating season, however, they are very territorial – fending off rivals to their mates and offspring. The species is monogamous – it mates for life, except in the case either mate dies or does not return. Bald eagles only breed once a year. Bald eagle eggs are incubated for about 25 days before hatching, and are speckled in colouration. Bald eagles seem to prioritise maximising egg number – in seasons of food abundance, as many as three eggs will be laid – but in other times, only two or just one will be laid. In a typical family structure, the male bald eagle provides food for the brooding female and their chicks. Though later in the chicks’ life, both parents bring food to the nest, with the female seemingly bringing more food. The female spends much time tending to the young in the first three or so weeks – though after this, the parents seem to leave the nest unattended for longer. After about 80 days or so, bald eagle chicks begin to fly. In increased maturity, bald eagle chicks also become increasingly violent – with killing of siblings common within the species. Typically, the first-hatched chick is the one who will kill any chicks which hatch afterward. They become sexually mature at 5 years of age typically – though in some populations only 8% or so reach breeding age. The oldest captive bald eagle on record was about 47 years old – and the oldest wild bald eagle on record was a New York bird which died at age 38. However, many wild birds die earlier than this, with a typical lifespan being one of about 20 years. | ||
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| The Wenden Animal Encyclopaedia would like to thank especially: | The Wenden Animal Encyclopaedia would like to thank especially: | ||
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| - | **Michael Quniton of Minden Pictures, who provided the picture of the nesting bald eagle.** | ||
| **The John F[itzgerald]. Kennedy Presidential Library.** | **The John F[itzgerald]. Kennedy Presidential Library.** | ||
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