Trials of Being a Baby Bird

It’s a new Rufito!

At the time of the photo, this bitty baby Rufous-tailed hummingbird had hatched ten days before and endures a tighter and tighter squeeze each and every day in that tiny nest as mother tirelessly feeds this immobile yet very hungry little chick.

Baby birds (not just hummingbirds) have a hard go of it, even before they’ve hatched out of that delicate, vulnerable eggshell. When it comes to nature, if your defenses are down (or non-existent, as is the case with most of our nestbound babies), there is no mercy should a predator happen by.

Stripe-throated Hermit nest

And there are many predators in the rainforest that consider an inhabited nest a free-for-all dinner plate! So what can baby birds do about it? Well, nothing. So instead, they must depend upon their parents to have evolved and obtained the necessary considerations and instincts required for where and how they build their nest.

And camoflage is KEY.

This nest, containing our impossibly adorable rufous-tailed hummingbird chick is made out of silky fibers from plants and spider webs and then plastered with bits of dead leaves and lichen to help the tiny cup nest from being detected among the branches by wandering eyes. Nevertheless, no matter how much effort is put in to the building of the nest and making it appear camouflaged, the immense importance of the nest *location* is also very key.

At this point, I’m almost convinced that if we humans can find a nest, then predators are seeing it too and that was practically confirmed as I watched a total of 5 hummingbird nests fail this year, some of which were hatchlings between a couple days old to more than a week. Prime predator for our defenseless little birds? Snakes. Another surprising predator we found were ants, which could reach some of the far spots on the branches that were too precarious for a serpent to reach.

Weather comes into play as well in the survival of an exposed chick, and with the occasional nighttime rains we’ve had of late. So we can only hope the momma hummer stays put and keeps that chick dry while it very slowly grows in those essential, water resisting, protective feathers!

Stripe-throated Hermit nestling

Baby hummingbirds hatch completely devoid of feathers and only a few wisps of down and thus are actually considered cold-blooded during this time, meaning they have no control of their body temperature which is thus subject to the surrounding conditions. If a hummingbird chick gets wet, it is unable to stabilize its body temperature and thus is in grave danger of dying without any protective insulation layer of feathers over their skin.

So baby hummers, and baby birds in general, have a lot at stake during the most vulnerable point in their lives. Should you come across a bird nest in your nature wanderings, it’s best to leave it be and let the parents do their job. Make sure you are far enough away that a worried parent bird can return without fear to carry out raising that precious little bit of life and carry on the next generation.

Hummingbird or insect?

Nature is full of incredible adaptations – today I want to review one of many curiosities of nature, a moth that looks like a hummingbird. Known as Hummingbird moths, Bee Moth, Hawk Moth or Bee Hawk Moth, just to mention a few common names, this group of Sphinx moths, are an abundant group, with over 1200 species around the world.

Sphinx moth Pic. Sphinx moth (Aellopos titan) feeding.

The moths have received their name because they have many similarities to hummingbirds:

  • feeding in similar species of flowering plants
  • efficient pollinators
  • the shape of their bodies
  • the tip of their tail opens into a fan
  • some species have bright colors
  • the skill to fly sideways and backwards.

At this point sounds like they are very similar, and it will be hard to tell them a part, but there are also differences between those two sets of creatures – the hummingbird moths, are smaller, have antennae, and are not as aggressive as hummingbirds!

Stripe-throated Hermit Pic. Stripe-throated Hermit (Phaethornis striigularis) feeding.

If you are a new garden observer, be patient, and in a little bit of time you will be able differentiate one from the other.