I was just holding my two ducklings and I noticed that both of them had very hot legs. They were sitting next to my arms and I was surprised by how hot their legs were. Are they too hot? It's pretty warm here, with highs in the 80s and lows in the upper 60s or low 70s. They were sleeping pretty far away from the heat lamp so I moved it away and angled it towards only half the brooder. They are only just over a week old, so it's still too early to completely take away the lamp, right? Thanks!